Sprinter injector leak off test. I tried pulling the plug on the rail pressure regulator.
Sprinter Nightmare: From Injector Testing to Start Error Mode - What Happened?!"Description:In the midst of diagnosing starting issues with my 2003 Mercedes Jul 14, 2014 · No Sprinters were harmed during this leak off test. Jul 29, 2022 · My cylinder 5 injector is waaaay off from the other 4, is that bad? But it doesn't seem to fail the test, its still under 1. tiktok. The 1st, through out, the 3rd, I filled each "well" where the orig fitting sits to the brim then when inserting the hose the level would come up about 1/2 to 3/4 " so 2007 – 2009 Sprinter OM642 Diagnostics | 2001 – 2006 Sprinter Van Diagnostics 2007– 2009 Sprinter OM642 Diagnostics PDF: 2007 – 2009 Sprinter Van OM642 Diagnostics In order to do proper diagnostics, you will need a scan tool and some special tools available from Mopar Special Tools, https://mopar. I tried pulling the plug on the rail pressure regulator. I have been reading several posts about hard starting and mine is of the hot variety. Still blowing off fuel around the leak off connectors on the injectors. To my chagrin it still leaks - not as much, but with new injectors, i was expecting no fuel. Contains measurement tubes for short term tests and measurement bottles for long term, more accurate evaluation. Injector back-leakage can also be referred to as injector spill testing or leak-off testing. Dec 15, 2018 · Perform Sprinter injector Leak-Off test to identify injectors leaking CAN faults could be from sudden engine dying . Cleared the code and drove some more. I have checked for air in the lines and its all OK. Feb 18, 2023 · As has been said in this forum before, a good leak off test does not mean a good injector. The injectors should have the leak off measuring tubing on them to prevent any fuel spillage. Injector testing includes a very detailed test with many parameters measured on a calibrated Bosch test setup that costs tens of thousands. 2mm inside diameter, a set of leak-off connectors and four plugs with 7 mm entry holes. To be clear, I haven't tried it. 2 runs for 10 sec, & 15 for final. Made sure to clock it to the fuel line. ). Your Mercedes-Benz Sprinter's check engine light may illuminate if your Jan 27, 2017 · A word of warning. For injector testing does running the engine for a longer period of time (given there's a sufficient amount of catch capacity) produce a more reliable test? Dec 12, 2014 · Long story short-towed 4 hours south, lucky to find an MB mech with Sprinter experience and he diagnosed it as a frozen #1 fuel injector. Conversely, defective fuel injectors can also cause engine stuttering, followed by acceleration and struggle to gain speed. If you let them sit this way #5 inj leaks the fuel down. I use 1/8 id edit- less than, silicone. I got 2 injectors from wholesale mopar parts, I gave them the vin# so I assume they're the right injectors. The pump in tank is more of lift pump. So look into that. Oct 30, 2018 · Air leaks in the low side fuel filter/lines. Replaced the in-tank pump and now getting 70psi. 1" (25mm) Vehicle is 06 2500 with 50K miles Engine is running great, but wanted to do a this test, since i got the car almost a year ago. Mar 3, 2021 · The O-ring can harden and become brittle from the heat of the engine and if it breaks, then the fuel can leak over the engine. com/ Easy to deal with if Apr 2, 2020 · That test is an estimate as to compression. May 10, 2020 · I have a 2003 Freightliner Sprinter Class B motor home I purchased in 2018 with 77,000 miles. They don't think the cylinder or injector are damaged and that an injector leak-down test and cylinder compression test were unnecessary. You didn't mention yet if it was for sure fuel or if it was exhaust. It may fit if you remove the cabin air filter box, but previous owner broke the latches, and glued the box shut. Given how low the rail pressure is during cranking, it would be a significant leak back. These injectors passed the test. Jul 26, 2017 · Not perfect, but I bet that it would work. Find a Merc Indie with Star diagnosis and a leak off test kit and Im sure you will get it fixed. Doktor A Jan 14, 2024 · so i ended up doing a leak-off test. "04-'06 647 engine modules have a modified design that allows single injector shut-off without shutting down the engine. Feed line from filter to input of fuel pump- had bubbles Nov 13, 2014 · The compression and fuel you are seeing should be from the injector hole now that the bolt is not in their to hold the injector down. Apr 19, 2019 · To verify this remove the injector LEAK OFF fuel rail connectors at the injector stubs, clamp down the rubber pipes coming back from the injectors at the tee piece connector (front left of the engine valley) with say some small vice grips. That could be multiple injectors leaking "sort of" badly (this happened to me), or one injector leaking really badly, like you have. If the ball and seat starts to Nov 1, 2013 · Mercedes has this as a kit for $12. ☹ May 23, 2018 · i have fitted a new injector to cylinder 2 today after a leak off test showed that it was returning far more fuel than cylinders 1,3 and 4. Was hard to start when I bought it (worse when it was warmed up), ran a couple of tanks of fuel through it while starting the conversion to an RV, then became "wont start" at all. ,thought to myself whats the chance of the starter going out,Removed the Jul 15, 2013 · Injector leak off test revealed injector no. youtube. Jan 12, 2016 #1 #1 leaking for certain, possibly #2. Starter fluid will speed up the engine to gain enough fuel pressure for a start with it's firing a few cylinders It wants you to put graduated cyl. Haven't driven the van enough to gauge whether the leak has stopped yet, as it was pretty slow even before. A in November and shows the least amount of leak off. Be especially attentive to a slight delay when pressing your gas pedal. I was able to get the vehicle started then changing a bunch of parts on the fuel system (HPFP, filter, rail and its sensors, and swapping out In this video, using a step by step approach, I will show you how to fix the Mercedes CDI diesel leaking injector (Black Death) problem: including any tools Where to CHECK on the OM642 Mercedes Diesel Engine for Fuel leaks. but the most common leak back cause is the ball seat either being damaged or worn too much. Why? The reason why is that the fuel system in all of the CPI and CSFI equipped Vortec engines are designed to maintain fuel pressure for a few minutes after engine shut off. The solution is to just wait about 10-15 minutes and then the engine will start right up as if nothing is wrong recent work done 1. (Bad experience in N. 1 leaking far too much fuel, all the others were fine. Mar 8, 2017 · Re: P00087 Code Low Fuel Pressure Limp Mode or Full Shut Off I would suspect fuel pump. It’s best to call a mechanic immediately if you suspect a fuel injector leak. Apr 27, 2019 · Update: The van is running well, but I am still getting the P0088 fault code (high fuel rail pressure). At 220,000 miles with some suspect, you probably should send all of them to be tested. The injectors incorporate Mar 30, 2022 · Hi everyone looking for some help I have a 319 2014 sprinter 642 engine when under load I get cel and limp mode, star codes are low fuel pressure P0087FB and high fuel pressure P0088FA no other codes, I've changed the hp pump, fuel filter, rail pressure sensor, before I changed these parts I Aug 21, 2020 · Had a problem with leaking fuel from the engine, and after some investigation, came across a broken "t" fitting in my leak-off assembly (probably broke it during a leak-off test). Looks too wet to be Black Death. I have a 2004, I had black death and did the leak off test and the #3 had about 3 inches in the tube and the #5 was leaking causing the black death. 2 mm tubing is also an eBay purchase as were the second hand leak-off Oct 28, 2013 · Can anyone tell me if my results, especially injector 5 that had 1-3/4" of fuel on first test, indicates a failing injector? Also, if my injectors appear to be okay, why am getting a P0087 code? What else can be easily tested? Aug 14, 2018 · Often overlooked is the issue of injector through leakage! Any substantial flow from the HPOP pump through the injectors can kill reliable operating pressures particularly at start. But it's still happening. Hence the selective injector shut off test available in 647 diagnostics. replaced the fuel filter Injectors Buy Bosch Replacement Injectors for Sprinter Diesel *The injector hold down bolts are torque to yield. I don't think you need to test that injector any further, just replace it. after fitting the new injector the van seems to have got worse and after another leak back test it shows that the other three need replacing now can changing one injector really make that much difference to the rest. I searched Google for method of testing the injector leak off. Test leaking Fuel Injectors. Indicator that the pressure relief valve may need to be rebuilt: starting takes longer or will not start when warm. Preemptive replacement has real merit. Thank you all in advance The Gas Piper May 8, 2024 · Hello NCV3 owners, I started a thread some months ago proclaiming that 90% of the time a crank and no start issue can be linked to a faulty injector. That is the only definitive test. Mind you, he has put about 50 miles on his 'new' 06 T1N with 182k miles. Apr 2, 2018 · I was contacted by a new sprinter owner who was getting a Check Engine Light. snapon. Replaced Apr 13, 2018 · Can the injector be cleaned in an ultrasonic bath and if so what type of cleaner would you use ? Worse case scenario he ditches injector and gets a Bosch reman ! Will help him do a leak off test to determine which is / are bad . This video is about Black Death Mercedes Vito 639 Jan 16, 2024 · If I needed to pull injector tomorrow I too would swap it out for a remanufactured one. If one or more of the injectors leak off too much fuel, the high pump may not be able to generate enough pressure at cranking rpms to allow it to start. This video was made for anyone that has problems with their sprinter hard starting or Aug 8, 2011 · This is my 2nd of 3 runs. I have tried checking and cleaning all the wiring connections. paypal. With the cam sensor unplugged so it won't start, and the fuel rail solenoid plugged in, it should leak nothing. Luckily he had a used but good one on hand and we were soon on our way. No fault codes. Fault testing diesel fuel injectors to find Apr 20, 2014 · I would very appreciate some info on the results of a leak off test after being told by the Mercedes main dealer that they are unable to tell me the tolerances of my injectors. Looked at price of new fuel pumps (not cheap as I was expecting by a long way. , there was some bubbles out of #3 while the others just slowly filled tube. I read somewhere in the forum that you could test for leaks by running the engine with some water in the injector wells and Apr 17, 2011 · we performed the test 5 or 6 times to be sure, and injectors 1,2,4 and 5 all leak off a consistent 2-3 drops per 10 second crank. Master kit includes range of adaptors to suit Bosch, Delphi, New Delphi and Denso injectors for comprehensive coverage of common rail diesel vehicles. With a 6" bit, and a standard drill, there is not enough clearance under the cabin air intake for the drill. Jan 12, 2020 · Hard to see where the injector leak is coming from. Retorqued crossover tube nuts and adjusted valve lash while I was at it. It does not test for black death leakage (which is audible and visible), nor overfueling, nor bad spray pattern nor a number of other possibilities. Injector passed bench test with our state of the art machine and ready for installation. Jan 30, 2012 · I have performed the injector leak off test and below are the pictures of the results. Parts:-3/8" ID clear tubingTools:-5mm allen wrench-Needle nose pliers-Vice gripsFirst thing to do is remove the plastic cover over the injectors. Injector leak off test- all injectors test good 3. Donations https://www. May 2, 2022 · At that time I replaced the fuel filter as well. Does it sound like Black Death? Injector returns are prone to leaking. Today I did an injector leak by check since I had one go bad and have had recent extended crank times. The main (second) weak fuel pump will allow the vehicle start and run fairly normal but will not supply the high pressure fuel enough to generate the higher injection pressures(27,000 psi plus) needed during heavy acceleration and could put the car in limp mode and Feb 14, 2020 · Low fuel economy + coked fuel in the galley + 1 puffing injector + over 200,000 miles + poor leak off test results = Decision to change injectors before something bad occurred. Rail solenoid test: 2003 MB/Freightliner 2500, 216,000 miles. Injector replaced, problem solved. I was hoping that the loose bolts and leaking pump was my issue. Jul 16, 2013 · The injector leak off line needs to be removed from the injectors, then pinched shut upstream of number 5 injector. It was slick. This all took a long time to diagnose but the solution was disproportionately simple. 5. This video has an example: May 26, 2023 · The new shop is saying they should be able to extract the damaged bolt and replace it. Remanufactured Diesel Fuel Injectors For 2004-2006 5 Cylinder 2. Only noticeable difference was when #5 was killed the noisy injector I'm hearing went away. Either way, I purchased new bolts and copper seals and I plan on doing the injector leak off test tomorrow to determine if there's a bad injector. So. I still want to do the injector leak-off test and while I'm at it test the fuel rail solenoid too. About a month ago I started having hard start problems after driving more than a few miles. The van now starts easily first time. Regards Dec 6, 2014 · A 2003 will not start if the fuel pressure is too low, from a leak in an injector or rail pressure solenoid, and this test sees if it's an injector leaking back to the return. Oct 13, 2019 · ok this might be a long one,got the passenger side done and thought might as well do the drivers,after the passenger side was done took her for a ride to heat it up got back home turned it off to remove the piping and such before i did went to start it to pull up a little farther and it would not start just click click. Sep 8, 2019 · 2006 313 4cylinder - Was finding it difficult to start after 2 months of no use. Nozzle wear results in injectors which have bad pattern, and in some cases causes them to leak fuel (overfueling). We don't have these so I tried vinyl tubing. Jun 3, 2014 · Fellas, Recently while performing a fuel injector leak off test I had to remove my injector leak off tubes and figured it would be a good time to replace some of the inter-injector fuel return lines with clearish Teflon tubing and SS clamps. The injector looks rough but i dont see any scoring on the mating surfaces that concerns me. To repeat: A leak off test (as far as I can tell) is only good for two (very important) things: 1. We went over 13,000 miles in 2019 to Alaska and back. The previous owner told me he had experienced a boost issue and gave me some parts he carried with him – just in case the LHM Feb 5, 2022 · What Sprinter Snail said. Last edited: Dec 15, 2018. It's runs as sweet as a nut, but refuses to start when it's hot. Leaking Injector: How to Replace to Avoid BLACK DEATH// Sprinter injectors can start leaking and cause black death to occur. No visible leaks present. Leak off pipe assembly replaced with new and filter changed. Nov 14, 2017 · Another thread on this site suggested I do a fuel injector leak off test, but I'm not sure if that would be conclusive since I can't currently get the engine warm Apr 21, 2014 · My sprinter 2003 311 CDI does not start after driving about 800 miles which was after changing the injector seals. An injector leak can cause your engine to run rich, which can lead to hard starting, misfires, and severe engine damage. For one thing my code triggers well after startup and idle, once I'm on the road and accelerating. A DAD, DRB3, MB STAR or other higher level software Aug 8, 2011 · The injector leak off test is useful when diagnosing starting issues at cranking speeds. Am also hearing a slight knock (2-3 seconds) pulling away from idle which also disappears at about 1000 rpm. A big FWIW on the following. So I replaced it, cleared the codes, and it's running perfectly now. Cranking fine but taking 5-10 seconds to fire up. If it isn't puffing then I figure I'm ok. the amount that 1,2,4 and 5 are leaking off seems normal, judging from the posts here about leak off tests very little, and consistent amongst all the injectors, except number 3. #2 injector was removed and replaced to correct a leaky seal. The fuel rail pressure needs to be above 3000 psi for starting to occur. Aug 8, 2011 · Here's what the test doesn't tell us: If the injector is overfueling If the injector has a bad spray pattern If the injector is prone to "black death" If the injector is leaking. Oct 19, 2019 · You learned that the leak off parameter is within ok specifications. A local shop, replaced my injectors - all 5 on my 06 T1N. So do the rail solenoid leak test and the injector leak by test. :yell: Replaced the o-ring kit on the fuel pressure regulator. com/@enjcustoms?is_from_webapp=1&sender_device=pc#injector Dec 11, 2011 · Do an injector leak-off test. com/editor) Several weeks ago I did a pre buy on an N1. Others have driven 3000 miles with the balancer removed so you will probably be fine. All the best, Mike 1- Is the diesel injector leak off comparison test with the 3/8" tubing a good way to identify a bad injector? 2- is there another way to test? 3- is there a suggested bargain place to purchase a reman or new injector on the web? 4- can I send my pulled injector somewhere for a cheap rebuild so I can eventually rotate new ones as needed? The Test Kit. Do not re-use old seals Aug 14, 2015 · When running my 2003 Freightliner nameplate sprinter leaks constant drips of diesel off the back of the block underneath and transmission housing. Connection guidance. Thanks again for tips. 2mm pipe of the same length from each injector leak off fitting & place other end in an identical 250ml (ish) transparent bottles. It is very difficult to start when cold. 1' sections of 1/4 ID clear tubing (on all six injectors) and pinched off the return lines near the T back into the inlet side of fuel filter. This will show if the injectors could be the problem. Mar 6, 2020 · Hi guy, I have 2006 Sprinter with 289000 Km on it, Couple month ago , engine shut down when I was parking my van and I tried few times to start and finally started , Today I start the van , started right away , when I came back to drive it , engine was shut down , I thought might be some one Feb 11, 2020 · Leak off test showed injector 4 was leaking loads but most importantly there were a lot of air bubbles coming through on all 4. before attempting any of this, check your injectors with a leak back test to make sure that none of them In this video, Bill & Mike show you how to perform a Fuel Injector Leak-Off test using Miller Special Tools 9545. Here is a pic of the new injector return line and the Oct 3, 2020 · Appreciate any insights or suggestions on approach to address a rough idle which disappears at 1000 rpm; no other driveability issues. As an owner of a 13+ and a 15+ year old Sprinter my DIY checks are to listen to the exhaust occasionally. Could this be due to an injector problem or some other issue? Appreciate the help! Thanks Jul 29, 2013 · The engine starts and runs fine but the leak off pressure seems too high. first off, quite a bit of fuel into the 'test tubes' just turning on the key and waiting for the glow plugs. #1 injector was replaced by Dr. 3/4 (19mm) 4. Perform the smooth running test, is #3 out of spec? If so, I bet you have a worn injector. Jul 6, 2023 · Diesel fuel injector leak off test, Mercedes Benz OM642 V6, 2008 Jeep Grand Cherokee 3. The only issue it has is it’s leaking diesel on the front sensor on the injector rail. If you don’t have service information, you can Read more » Here's an easy way to locate and fix a leaking injector. Nov 6, 2017 · Excessive leak off is caused from a couple different things: excessive nozzle wear, causing more fuel than normal to leak back up and out the return. I did an injector leak off test and a number of other little scratches at the surface. The problem is easy enough to fix with a new "t" fitting, but the broken tip of the old fitting is Sep 28, 2013 · The second issue was an injector leaking off too much fuel. Can I do the same on the V6? Is there still just one cam sensor, and if so where is it? If the Van is idling fine and runs smooth, is this test nessecary? Thanks in advance, BVD Feb 22, 2023 · Remanufactured set of (5) diesel injectors to fit 04-06 Sprinter OM647 engines. 2. In order to prevent a break down or to catch an injector leak before it becomes a bigger issue I decided to perform a injector leak test. It would be no worse than any other small fuel leak in the injector gallery. !!!) found a couple of places that do recons for £150ish if you send them your old one. Burning a piston is a real risk at this stage of injector life, and would come with a hefty repair bill. If the copper seals and bolts were reused, would the injector leak off show a bad injector and/or a bad seal/bolt? Mar 3, 2015 · A diesel smell can indicate a fuel leak , possibly under the black engine cover, or black death there as well. The problem is easy enough to fix with a new "t" fitting, but the broken tip of the old fitting is still stuck down in the injector. Did you follow the torque sequence in the manual when you replaced the fuel rail solenoid? Hello all, Thanks to all of you for your help in trying to diagnose my hard starting problem. Bad internal seal on the fuel rail solenoid. amazon. To perform a leak-off test you will need a set of measuring bottles, 2 metres of tubing 3. Apr 16, 2020 · Suggest a new leak off hose assy with "whoopty do" metal fittings, & would probably work well as an "easy fit 'n forget" @ $200. With a bit How long your T1N Sprinter injectors lasted? Thread starter OK12V; Start date Jan 12, 2016; OK12V Member. Nov 18, 2017 · I have 222222 miles and get right around 21mpg (last tank was 22. Re balancer, looks like a surface crack, others may know more, to me could be worse. 3. Sep 8, 2013 All I know for sure is I only started noticing this leak after they did the leak off test and replaced #1 injector, which is Apr 7, 2021 · Your injectors look far too clean to have had fuel leaking and drying onto them. No, you shouldn’t drive with a fuel injector leak. 15W40 oil in the winter can also reduce MPGs Is it possible to test injectors with a bad injection pump? I had a injection pump done and now there saying it needs all new injectors and still doesn't run Jul 16, 2013 · The injector leak off line needs to be removed from the injectors, then pinched shut upstream of number 5 injector. It’s a 2005 with 310K . If I need to schedule injector work on my 10+ year old T1N's I would include a leak off return hose set in the parts needed. (1. Perform an injector leak off test, but realize that the test is not 100% conclusive as to overall injector health. If the rail solenoid doesn't leak, then yeah it's time to remove and bench test the injectors at a bosch certified facility. After getting the sprinter back I wanted to see the difference in injector leakage. Note: Diesel injector back-leakage, pressure and balance are dependent on fuel quality, the integrity of the high-pressure diesel pump priming circuit, the common rail high-pressure circuit, the engine load, and the common rail diesel control system/components. ENJ Customs on TikTok: https://www. or metering tubes in the top of inj. 0 CRD, also Sprinter Van. No one injector higher than the others. All the injectors are believed to be original at 180,000 miles. Swapped the cam shaft sensor- no change. Does this seem excessive for brand new injectors? I believe they are Bosch. Then and only then, measure the solenoid fuel quantity. Did a leak off test and all seem pretty even. Rolling the dice on an injector at 220,000 miles carries a lot more risk than it did back at 150,000. Aug 8, 2021 · Troubleshooting P0088 code on my 2005 OM647 sprinter engine. An injector issue. Another way the injector can leak is if the injector nozzle or body cracks. I cannot find where it is coming from. There are No fault codes nor engine light . I see on eBay that they sell that specific part, has anyone had Oct 6, 2018 · Given that you are having a hard time restarting, you might try an injector leak off test. At that point perform the leak off test, but consider sending that one in for testing and rebuild. Jan 30, 2024 · I refit the injector with new washer and hold down bolt. New injector installed, van running fine. Mercedes were looking for £120 for the replacement injector leak off return pipe I just bought four replacement fittings and some fuel line for £42! So, I ca Dec 20, 2023 · Hello everyone, I am new to the group and wanted to say hello. Remove leak off pipes from injectors, connect soft transparent 1/8" or 3. But I would stop driving it, needs to be locked out/tagged out till it's fixed. 4 psi Scanner (Autel MD802) readings at idle after idling for a couple minutes: idle: 770 RPM FRP Oct 30, 2021 · I then did the injector leak off test with the 3/8" clear tubing, cam sensor unplugged etc. the correction values on my delphi Sep 14, 2010 · I too would go with high leak off on an injector or the rail pressure o rings as Alex has just mentioned. If none, do an Injector Leak Off Test for uneven injector flow which might cause grey smoke. They will do that if the rail pressure is uncontrollable from the rail solenoid failing or the injectors leaking too much. If you really do have a bad injector, you should be able to feel a pulsating or puffing flow coming from the tailpipe at idle with your hand. I replaced the plastic intake fuel hoses with a new fuel hose kit 2. sometimes the engine doesn't start after a day of running around. Stan's van New member. Performed injector leak off test and all injectors are good After reading other posts I figured I'd replace the Fuel Quantity Control Valve and be done with it. I'm coming up on 200k miles, and haven't noticed any smells or had any engine trouble. Did the leak off test, and results are: 1. 4" equals 1ml (measured). 4 which helped a little but - still slow starting. Sep 5, 2013 · 2003 Sprinter 413 CDi. These fittings are very fragile so don't go pulling them on and off to often! I am going t Aug 8, 2011 · The injector leak off test is useful when diagnosing starting issues at cranking speeds. A good test is to remove the leak off rails at the injectors, clamp the leak off hoses at the filter junction block and do a crank test. could it be the fuel regulator, which is at the end of the rails, problem or can someone tell me how i can check the pressure in the injectors without taking them out again Jun 6, 2023 · The leak off test can't find all failures and the smooth running test can't either. Jun 11, 2022 · Leak off testing only tells you if the needle and bore is worn. 5 inches in 10 seconds of Mar 5, 2017 · Injector leak off test done today, vials only fill 1cm or less in 10 seconds cranking. injector 3 leaks off nothing. I cranked the engine for 10-15 seconds and only got about less that 1/8" of diesel in one of them, all other 4 had nothing. Check Engine Light. Leak off test seems ok at around 25-30ml on all injectors. The pictures show about 1-1/4" light in every tube, I actually have a ml syringe so to avoid spilling diesel I removed all the fuel and measured roughly 2ml or less in all of them as well. J. Thread starter 650max; Start date Jul 19, I'd like to try and pin things down to specific cylinder(s) via a leak-off test Apr 11, 2021 · The leak down was done exactly as described in the leak-down test write up and exactly for 10 seconds as timed by the app on my phone. The other four injectors don't show an obvious excessive leak off (or at least to my untrained eyes). They haven't done the repair yet so they aren't 100% sure but it sounded like a relatively easy fix. Dec 17, 2017 · I would do the rail solenoid leak test first because it is easier than removing/testing all the injectors. Anything to worry about, judging by the results? Thanks! Apr 5, 2012 · My 2005 with 160,000 miles has a slight cabin odor. Replaced the o rings on the leak-off pipes as they seemed a bit tired - still slow starting. 1" (25mm) 5. Stalling sounds like a sticking injector. Jun 28, 2020 · Checked fuel pressure after the fuel filter and was getting ~50psi reading. ) I did a leak by test on the return fittings off the injectors with some 3/8's tubing. As far as the glow plugs, I do have concerns about them as well and have a new set ready to be installed. Though the two are often related. #2 is the worst, closely followed by #5 and #4. Starts great when cold. Oct 11, 2011 · TEST 1: Fuel Pressure Leak Down Test. I got about 5\\8 in lowest one, and 13\\16" in highest, and we have determined that 1 and 1\\2" is the limit. Mar 8, 2018 · Oh I missed this, so it was just shutting off. Check fuel rail pressure to be 2900+ psi while cranking. I hope you can follow the following text. Mechanical failure. While running test a lot of bubbles and fuel poured out of #4 inj. You could try cooling the fuel a bit to see if that helps (fuel filter and lines). In some cases, the engine can come to a complete stop. If no fuel is evident, do your injector leak off test again. 7/8 (23mm) 2. It is labled as some kind of vacuum kit. Feb 7, 2024 · A Sprinter Mechanic told me I had some black death on Injector 2, here's a photo of the injectors and the results of the leak-off test - the lines on the tubes are one and two inches from the base. Re: 02-03 Sprinter Fuel Regulator O-Ring Kit I used a 1/4 hex bit Bill shows how to test injectors in a 2002 T1N Sprinter. * new fuel rail installed *new low pressure fuel pump installed and putting out 62. Feb 16, 2010 · 2007 Sprinter injector leak-off rates. Spill or back-leakage is an essential feature of the common rail diesel systems, which confirms adequate lubrication of the injector assemblies while Oct 14, 2017 · 2003 2500- mechanical fuel pump. 7 Diesel Engine. https://ocaladiesel. You likely have a fuel system leak that is related to last things done. Mar 18, 2019 · I managed to fit the injector return pipe with not to much hassle. For the test to be valid you must have proper feed pressure and the rail solenoid needs to have its electrical connector plugged in. 1. I swapped in a remanufactured injector for no. Basically, if you try to cheap out on an old Sprinter, the result may be you have an old Sprinter with a blown engine that is worth zero. I did a leak off test today. Unfortunately there are other performance parameters which the leak off test doesn't check. The average DIY fuel injector cleaning project and most automotive repair shops does not have the proper diagnostic equipment or the ability to test leaking injectors or clean them properly. Looks like he is going to need new injectors in the near future. Rail pressure control solenoid spits out plenty of fuel during 10 second cranking test while plugged in (35ml est. Apr 8, 2018 · The leak off test only shows one aspect of the injectors health. So now the fuel leak is gone but I get a p0088 code. If one injector is unplugged this does not occur. To avoid this, learn how to tell Identifies worn, blocked or inoperative injectors quickly and easily. In this video, I will show the most likely areas on your OM642 engine to be the cause of a Feb 27, 2024 · Just like the leak off test, which can possibly find a bad one but cannot guarantee that they are good. Oct 7, 2020 · Pictured is the fuel injector leak off of my 2003 OM612 with 356K miles after cranking for 20 seconds. Sep 8, 2019 · Re: Hard start / injector leak off test Well lets start with the USA and my names sakes Williams Diesel. I’m Supposed to drive 4hours tmrw so hoping this isn’t something major. me/SiRobb/https://www. This just started ~500 miles ago returning home from Nov 19, 2022 · -I don’t have white mist, the injector area is clean, I did a leak off test 5-10k ago and everything is with in measurements, engine idles smooth and no smoke from tail pipe. The ECU monitors the rail pressure from startup until shutdown of the engine. They can go bad in many other ways. This is independent of ball/seat or nozzle wear. Sep 10, 2016 · To add to my previous post: the excessive fuel leaking off will drop the rail pressure. local garage say it must be the pump. vic Added: Nov 28, 2022 · Will also do leak off test the fuel rail solenoid and injectors as I got the inlet manifold off anyway so is an easy job. I know, what if it leaks. I just bought a 2006 sprinter 2500 drives like a charm no check engine light on. Possibly one of the most valuable and conclusive test procedures we have when diagnosing common rail diesel systems is the spill test, alternatively known as a back-leakage test or leak-off test. Likewise the 3. Could this Mar 17, 2018 · T1N Sprinters (1994 - 2006) T1N Talk Jun 20, 2012 · The only test I know that has been successful for me in finding a bad injector is the leak-off test. The leak off test is great for what it tests for, just not for anything else. uk/shop/sirobbI created this video with the YouTube Video Editor (http://www. The only test that proves they are good is to remove them and have them tested on a Bosch stand. Fuel injectors are an extremely important moving part to the complexity of the Sprinter van’s fuel management system. And what does this Jun 16, 2016 · After doing the Injector Leak Off Test I found that all my injectors seem to perform poorly (about 1/3rd full with 10 seconds of cranking), but the #3 injector was far worse - nearly full under the same test. 5-2" maybe) Apr 24, 2019 · Performing a leak test of a 2006 Dodge Sprinter T1N Injectors. Dec 2, 2010 · Yeah. They must be replaced when removed, they are one time use only! If they are not replaced it will most likely lead to the injectors coming loose while running, and possible damage to the cylinder head. Feb 21, 2024 · Sprinter Starting Woes: DIY Injector Leak Off Test Tutorial!"Description:In this comprehensive tutorial, I guide you through the process of performing a leak Jun 23, 2018 · When you do the leakoff test - again, super easy, you can then leave the return line pinched to see if that helps keep up the pressure should you discover one or more injectors is leaking too much. . I had been getting a rail sensor code and if course cycling the key returned the power to normal until the next key cycle. Unless there are combined factors like an injector literally dumping fuel into the cylinder at the same time as a badly leaking injector copper seal, a leaking copper seal of itself won't produce raw fuel. Will yours? This test procedure is the same for all Sprinters, up to 2006 and can also be used for Oct 15, 2023 · I'm looking to understand the best way to perform leak-off testing of injectors and the fuel pressure relief valve (Y74), common rail engine (om648). Nov 3, 2023 · I've been going through this engine bit by bit, solving issues, fixing leaks, and doing my best to keep ahead of failures. If its a hose section only, and you like cobbling stuff together, (& you don't want to wait for parts by mail,) then buy a leak off hose kit for a GMC 1985 to 1994 6,2 to 6,5 diesel. Your car could also catch fire if excess gasoline collects in the engine. A possible MPG lowering cause is a sticking brake caliper, check for free rotation of all wheels. With low pressure when it's warm, it really sounds like an injector leak-off or fuel pressure regulator leak from warmer, thinner fuel. Cranks a long time when engine is hot before starting. No trick photography or photoshop was used, either. 3/4 (19mm) 3. I believe that the 10 year old o-rings did not appreciate being removed from their bores. for now at least Thank you to Nelsonsprinter, Vic and Type2teach for the very accurate advice, which saved wasting time and money replacing the low pressure pump which the garage had diagnosed as the Feb 14, 2007 · Common rail injector testing (leak off method) This is very simple. I used four hair colouring bottles that are very cheap on eBay. Jan 20, 2012 · After testing all five injectors and finding all within tolerance, I reinstalled the Injector return line only to find that now injectors 1 and 5 were leaking from the top connection to the return line. Looking for some advice. Fuel injector leak testing should be done under operating pressure. If you're not noticing a heavy residue on them, I'd keep looking for that leak. no compression was the give away (it was frozen open). com. The part number is a0149977045. I have a Sprinter 308 cdi, 2003 model. Nov 27, 2014 · So I got new injectors and inj pump a few hundred miles ago. 311 sprinters are known for knackering injectors especially after 100k! Have done 2 in the last week! 2002 Sprinter 208 CDI leak off test due to engine not starting when hot. May 8, 2024 · I constructed a person puller for my 4 cylinder injectors with 2 hydraulic jacks I can post a pix of the puller later Make sure you first wiggle the injector left and right freely before pulling it up. Until one day I had been driving 20mins or so, stopped and then it wouldn’t start hot. Good luck,-dave May 3, 2022 · The leak seems fresh and maybe is primarily from the 800 miles I recently put on it. Unfortunately 3 out the 5 injectors required disassembly to utilize a puller so I'll never know how bad they were. 8!!) anyway I just recently did an injector leak off test and found borderline results. It has me puzzled. Black cover left off of course. Feb 1, 2020 · I would do a leak off test to check condition of injectors , white smoke is generally overfueling, could be sticking needle or control valve in injector sticking/overfuelling intermittently, a leak off test will give you an idea of the injector condition and may show one particularly bad one , only takes a couple of minutes and is easy to do diy Howdy y'all, Had a problem with leaking fuel from the engine, and after some investigation, came across a broken "t" fitting in my leak-off assembly (probably broke it during a leak-off test). The code returned with heavy acceleration, p0087. Left to cool, still wouldn’t start and decided to try jump start. The very first test (and the most important) to do is a fuel pressure leak down test. co. As for your Black death, make sure the seal is installed in the proper position against the cylinder head. One thing led to another and he ended up doing a leak off test. I changed the #5 and now the engine light is on and it's running worse. With the second engine you could pull the head and do the inspection and repair on a bench, much easier to do a good job and if you need the van running you could pop on the other engines head to keep the van on the road. Not wise to let a bad injector go. The car will Feb 5, 2018 · Injector return lines are to be removed, then place 3/8" hose from your leak down test onto the injector return fittings, simply to relieve pressure so we don't break anything (per dr a). It would seem to be leaking from where the injector leak line (recovery hose) goes down behind the engine. I checked the fuel tank and exhaust system for leaks and I pulled the injector cover and saw no sign of Black Death. Jul 31, 2024 · Diesel Sprinter Injector leak off test! Quick and Efficient Car Problem Diagnosis – Serving Springfield and Surrounding Areas Nov 30, 2023 · Cylinder Performance Test: 1: 90% 5: 111% 3: 100% 6: 96% 2: 105% 4: 98% Performed injector kill test. S. Check for bubbles in the clear hose. qyrux mxhlqjov gdmpc bgqqecih atxbr ovu hqky nvpyuxqx yfjp qbe