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  1. #1
    Senior Member Three Rings itlnstallion818's Avatar
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    Fuel Injector/ piston issues on 2.0TFSI B8.5?

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    I have a thread open now about diagnosing what could have happened, however, it appears the motor in my 2013 A4 with 71k miles has failed due to a hole in the piston from a leaky fuel injector. It is out of warranty and will I need to replace the motor. My dealership told me the "piston problem caused the fuel injector leak" (how would that happen, and what "piston problem?")

    My question:

    I know there have been recalls/ extended warranty's for fuel injectors on certain models with the 2.0 TFSI due to this issue. (my car wasn't an "affected" model via my vin number)
    Has anyone successfully had Audi own up to the problem & fix issues that arose from this fuel injector problem?
    How big was this issue for other 2.0T models?

    I'm just trying to gather as much information as I can to talk to AoA. If this WAS a big issue, and my 2.0 wasn't "listed" as affected, I may have some leverage. I just don't think this is fair. I love my car, I baby it. 95%+ of the miles were conservative highway miles.

    Any help would be appreciated. Thank you!
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  2. #2
    Veteran Member Four Rings vinny.dtw's Avatar
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    There is a hole in the piston because of a leaky injector? As in, it ran lean and saw detonation in the motor perhaps?

    I always thought there were only oil consumption issues on 2012 and prior models. I highly doubt you have much of a case, especially when you have a tune for your car... unfortunately. Wouldn't hurt to try though.

  3. #3
    Veteran Member Four Rings
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    Damn this sucks! Seems like every other week I see a blown motor now!? Good luck man


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  4. #4
    Veteran Member Four Rings hyperunion's Avatar
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    Good luck.... Especially with your apr stg 1.... Seems like Audi is offering nothing on tuned or modified cars... Even intake or turbo intake hose mods...
    B8.5 A4 Premium +, ZF8, APR Stg II+ E85, APR HFC Downpipe, APR Carbon Intake, APR Intercooler, APR T.M. Delete, AWE Quad Exaust, ECS turbo inlet hose, H&R coilovers , H&R F&R Sway Bars, Q5 4 Piston Brembo upgrade, ECS Slotted rotors and stainless lines, OZ Ultraleggeras, Piaa, 3M Crystalline, Xpel Ultimate. IG: "Veritech1"

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  5. #5
    Senior Member Three Rings itlnstallion818's Avatar
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    yeah having no luck. rebuilt longblock on the way as we speak :(
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  6. #6
    Veteran Member Four Rings AllroadCorbin's Avatar
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    This is my worst nightmare. This really should not be happening to a stage 1 car with 70k miles thats driven with respect... people say you pay to play when it comes to tunes but there really is no excuse for an Audi motor to shit the bed like this. I hope the next gen 2.0T found in the current A6 and B9 A4 with 252 hp is tougher. I haven't had any issues like this with my B8.5 and im stage 2 and have 90k miles, but it scares the shit out of me
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  7. #7
    Veteran Member Three Rings B44's Avatar
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    i would contact audi of america and try to talk and explain them. it never hurts 18008222834 ext 43334. good luck

  8. #8
    Veteran Member Three Rings Townending's Avatar
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    Have you been having the any issues before the failure, any kicking or hesitations? Would the car start at all after the failure?

    I ask because my car is out of commission due what I believe is faulty injectors, but now you have me thinking if this happened to me....
    2009 BMW E92 M3 - SilverStone II - Full IPE F1 Exhaust - Stage 2
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  9. #9
    Senior Member Three Rings itlnstallion818's Avatar
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    My car would start after the failure, just ran on 3 cylinders so it was shuddering.

    I did notice hesitations and kicking sensations for quite some time, I chalked them up to wastegate (I actually had the DV and wastegate replaced). My gas mileage had been going down for quite some time as well (from like 490 range in a full tank down to 450) over the course of about a year but again chalked it up to carbon buildup and needing a good cleaning.
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  10. #10
    Veteran Member Four Rings
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    A really badly leaking injector will allow a puddle of liquid gas to sit on the piston top, when the car is shut-off. When you restart it, if the volume of liquid gas is large enough, the cylinder will be "hydro-locked" and this can pop a hole in the top of the piston.

  11. #11
    Senior Member Three Rings itlnstallion818's Avatar
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    Does anyone know where I can find old Audi recall campaigns?

    http://www.audiworld.com/forums/a4-b...s-aoa-2852802/

    This is referring to CAEB engines like mine that had faulty fuel injectors causing misfires

    I realize this campaign is a little older, but anything I can do to take to AoA for assistance can't hurt
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  12. #12
    Veteran Member Four Rings blbroo's Avatar
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  13. #13
    Senior Member Three Rings itlnstallion818's Avatar
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    Anyone else with this issue. When I got the CEL for cylinder #2, I limped it to an advanced auto parts and purchased a new coil pack and spark plug. The old plug that that I pulled out of the failed cylinder that was actually recently replaced was completely fouled out with what looked to be oil but of course also smelled of gasoline.
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  14. #14
    Veteran Member Three Rings Townending's Avatar
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    My car is also out of commission for the time being. I am fairly certain it is my #3 injector that is stuck open. I ordered 4 new injectors (Bosch 62813 for Engine CPMA). I haven't looked inside the engine yet, but seeing your post really has we worried.
    2009 BMW E92 M3 - SilverStone II - Full IPE F1 Exhaust - Stage 2
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  15. #15
    Veteran Member Four Rings vinny.dtw's Avatar
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    Dang. I just realized my friend had a cyl 3 misfire code and the dealership just replaced the injector and the car has been fine since. Didn't realize these motors had injector issues...

  16. #16
    Veteran Member Three Rings Townending's Avatar
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    Quote Originally Posted by vinny.dtw View Post
    Dang. I just realized my friend had a cyl 3 misfire code and the dealership just replaced the injector and the car has been fine since. Didn't realize these motors had injector issues...
    That's how it all started for me, Cylinder 4 would misfire every cold start and misfire every now and then until the engine was warm. I then moved the injectors around and the misfire followed the injector. I was able to run the car issue free for 4-6 months by using Audi's Fuel System cleaner additive, but now it seems to be completely dead.
    2009 BMW E92 M3 - SilverStone II - Full IPE F1 Exhaust - Stage 2
    2013 A4 Quattro - Moonlight Blue
    Mods : APR K04 E85 - Solowerks S1 Coilovers - Treadstone TR8 - RS4 Honeycomb Grille / Foglight Grilles - ECS Intake tubing - Hardwired Valentine 1
    034 Motor Mounts / Tranny Mount + Insert - ECS Rear Diff Mounts + Insert - Alzor Style 349 Wheels 19"x9.5" ET 40 - 265/35/19 Michelin PSS - VAGCOM Mods

  17. #17
    Veteran Member Four Rings vinny.dtw's Avatar
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    Quote Originally Posted by Townending View Post
    That's how it all started for me, Cylinder 4 would misfire every cold start and misfire every now and then until the engine was warm. I then moved the injectors around and the misfire followed the injector. I was able to run the car issue free for 4-6 months by using Audi's Fuel System cleaner additive, but now it seems to be completely dead.
    Yeap..definitely NOT getting a tune for this car. lol

  18. #18
    Senior Member Three Rings itlnstallion818's Avatar
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    Quote Originally Posted by Townending View Post
    That's how it all started for me, Cylinder 4 would misfire every cold start and misfire every now and then until the engine was warm. I then moved the injectors around and the misfire followed the injector. I was able to run the car issue free for 4-6 months by using Audi's Fuel System cleaner additive, but now it seems to be completely dead.
    Have you contacted Audi? Let me know the diagnosis, is your engine code CAEB?

    I was going to have a legit, authorized Audi independent shop perform the longblock replacement, HOWEVER, Audi USA has a "hold" on ALL CAEB longblocks because they want first dibs. Something tells me this is a widespread problem!!!
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  19. #19
    Veteran Member Four Rings poweredbyaudi7's Avatar
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    Quote Originally Posted by itlnstallion818 View Post
    Have you contacted Audi? Let me know the diagnosis, is your engine code CAEB?

    I was going to have a legit, authorized Audi independent shop perform the longblock replacement, HOWEVER, Audi USA has a "hold" on ALL CAEB longblocks because they want first dibs. Something tells me this is a widespread problem!!!
    You 6MT?
    '14 A4 Q6MT / APR KO4 / AWE / HRE / H&R / 034 Motorsports / P3cars / JHM


  20. #20
    Veteran Member Three Rings Townending's Avatar
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    Quote Originally Posted by vinny.dtw View Post
    Yeap..definitely NOT getting a tune for this car. lol
    The hesitation started right before tune, so I don't think they are related.

    Quote Originally Posted by itlnstallion818 View Post
    Have you contacted Audi? Let me know the diagnosis, is your engine code CAEB?

    I was going to have a legit, authorized Audi independent shop perform the longblock replacement, HOWEVER, Audi USA has a "hold" on ALL CAEB longblocks because they want first dibs. Something tells me this is a widespread problem!!!
    I have engine code CPMA. I was marked TD1 about 5k miles ago, so my dealer turned me away for any warranty work. During my 35k Service, I did complain of hesitations in high rpms at freeway speeds, but they were unable to replicate the issue. Back then the hesitations were pretty widespread, so its not surprising they couldn't replicate it. I'm sure I have a leg to stand on since I complained of the issue pre-TD1, but I don't think its worth the headache.

    I should be getting my injectors either Saturday or Monday and will install them as soon as possible.


    Have you actually seen any proof there is a hole in one of your pistons? I know its possible, but I would be skeptical until I saw proof.
    2009 BMW E92 M3 - SilverStone II - Full IPE F1 Exhaust - Stage 2
    2013 A4 Quattro - Moonlight Blue
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  21. #21
    Senior Member Three Rings itlnstallion818's Avatar
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    Quote Originally Posted by poweredbyaudi7 View Post
    You 6MT?
    Yes
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  22. #22
    Senior Member Three Rings itlnstallion818's Avatar
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    Quote Originally Posted by Townending View Post
    The hesitation started right before tune, so I don't think they are related.



    I have engine code CPMA. I was marked TD1 about 5k miles ago, so my dealer turned me away for any warranty work. During my 35k Service, I did complain of hesitations in high rpms at freeway speeds, but they were unable to replicate the issue. Back then the hesitations were pretty widespread, so its not surprising they couldn't replicate it. I'm sure I have a leg to stand on since I complained of the issue pre-TD1, but I don't think its worth the headache.

    I should be getting my injectors either Saturday or Monday and will install them as soon as possible.


    Have you actually seen any proof there is a hole in one of your pistons? I know its possible, but I would be skeptical until I saw proof.
    I'm going off Audi's recommendation to replace the motor, I could have paid like $1,000 for them to tear it apart and confirm but he was pretty transparent that this was the issue.
    2013 Scuba Blue A4 | S-line Prestige | AVG M590 | K&N Typhoon | VCDS | 034 HFC

  23. #23
    Senior Member Three Rings
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    What this fixed in the later models? 2014-2016?

  24. #24
    Active Member Two Rings
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    My car (2013 w/66K miles, bone stock) just returned from the dealer for a $1K repair on failed injector #3.

    I opened a case with AoA just to see if they'll stand behind their product, one that was never tuned, received all recommended service intervals on time at a dealer. "Is it acceptable to have a core engine component fail at only 66K miles?" was my question to them.

    I paid about $3300 for an extended warranty for my 2007 BMW 335i and, based on dealer costs, got more than 2X my money back in repairs. I hope the A4 isn't as temperamental but we'll see.

    In addition, my car has had an issue for two years starting in warm weather after sitting for an hour after heavy duty commuting through ATL traffic, this was reported pre-50K. I will not be surprised if it was somehow related...

    I am interested to see what AoA has to say. Every $1000 repair reduces the value of the car for me that amount and I'm too busy, and not equipped to DIY something like this. If I'd had options I'd have taken it to an indy, but I was so close to the dealer when it went (on the interstate) I took drove it straight there. Additionally there were several days of rental car costs since they wouldn't give me a loaner. Wife is pushing for a Japanese car and I'm running out of arguments... :-/

    I suspect I will NOT receive a dealer survey for this one.

  25. #25
    Veteran Member Four Rings jfo's Avatar
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    Quote Originally Posted by jcatl View Post
    My car (2013 w/66K miles, bone stock) just returned from the dealer for a $1K repair on failed injector #3.
    What's included in that? The injector and seal kit would be about $85, $12 for a gasket and 3 hrs labor. All in , about $550. Did they do a carbon cleaning also?
    2011 A4 Avant

  26. #26
    Active Member Two Rings
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    Quote Originally Posted by jfo View Post
    What's included in that? The injector and seal kit would be about $85, $12 for a gasket and 3 hrs labor. All in , about $550. Did they do a carbon cleaning also?
    I think I got a lube job, if you know what I mean... I've never taken it for anything but scheduled service/recalls, so was not familiar with a good independent or I would have driven it there instead. If I keep the car for any amount of time I will establish a relationship with one. In fact, I may call around to see what this job would have cost at various places.

    What I noticed today driving home is that the car seems way peppier than before, much faster, but then I've been driving a 2017 Chevy Cruze for 5 days. I don't know if the injector has been bad for a while (years?) and then finally failed catastrophically.

  27. #27
    Veteran Member Four Rings jfo's Avatar
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    What does the invoice breakdown say? I just changed out injector 2 today. I've been chasing a random misfire for months. Since no codes were set, it was difficult to pin down and was actually more like a vibration. Finally, I got a CEL and it was for cylinder 2 misfire. It would have been covered in my case by the extended warranty, but the code would disappear after a period of driving cycles and was gone by the time I got it into the dealer. Since I'm several hours away from my dealer, I just did it myself. Not trying to depress you but my cost in US$ was about $75 for injector, gasket and seal kit from RMeuropean.
    So, it's possible your earlier issues were related to the injector. Lately, I could experience quite severe engine stutter/misfires under certain driving conditions with no CEL or codes. The injector was the likely cause, since I had already changed plugs and coil packs. After a few test drives , it now appears to be fixed.
    2011 A4 Avant

  28. #28
    Veteran Member Four Rings audrobotic's Avatar
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    Does anyone know what the heck is wrong with these injectors that causes them to fail? Do I need to put injectors on my maintenance list?

  29. #29
    Active Member Two Rings
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    So whatever my warm start issue is was not resolved by the fuel injector replacement. I got in the car last night to move it into the driveway (after it had sat for probably 4 or more hours) and it struggled to start until I gave it some gas. Same as it ever was.

    I got in the car this morning to drive to work and noticed the CEL is on again. I like my steering wheel low so it may have been on yesterday on the way home from the dealer, not sure, but I need it fixed/cleared so I can dump this car before it turns into a money pit.

    I've watched one DIY video on changing out the fuel injectors and it looks quite involved (for me, anyway). I drive 40 miles to/from work each day and we don't have a 3rd vehicle to manage a situation where a car is dismantled in the driveway for a day or two. I do believe the dealer absolutely a$$ raped me. I've left a message with the service advisor demanding a loaner and that they fix this POS immediately. Will also call AoA again to add more to the open case I have with them.

  30. #30
    Active Member One Ring
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    I just had a similar issue with my 2014 A4. The car had stage 1 APR tune. At 46K miles (2 months after warranty) It started misfiring so I changed the plugs and coil packs with no improvement. Brought it to an independent Audi specialist who said there is no compression in cylinder 3, valves seem fine. He assumes it’s a bad piston since there is lots of oil on top of it and I would need a new motor but can’t say for sure without taking it apart. He also said another guy was recently in the shop, same car, same problem. Both cars were tuned but not sure if it’s related.

    I’m gonna take it to Audi and see if they can do anything warranty wise (doubtful though). The car is currently sitting in my driveway since my local dealer has no loaners until mid May.

    The car is flashed back to stock BTW


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  31. #31
    Established Member Two Rings
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    WTF! A friend of mine had this problem too two weeks ago.

    Cylinder 1 and piston scratched and spark plug broke (burnt out).

    Anyone know the reference of bad and good inyectors?

  32. #32
    Established Member Two Rings
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    Subscribed. (getting ready to buy a b8.5 engine)

  33. #33
    Senior Member Two Rings
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    Did those of you that required engine replacement as a result of this issue experience running on 3 cylinders?

    Pretty sure one of my fuel injectors in leaking as I have intermittent starting issues if the car has been sitting for a few minutes to a few hours but never cold or just shut off. Smelled fuel the last time it happened. Hoping replacing the faulty injector or perhaps just replacing all clips and o-rings with the service kit will resolve my issue with no permanent issues.

  34. #34
    Veteran Member Four Rings Theiceman's Avatar
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    Quote Originally Posted by dkmesa View Post
    Did those of you that required engine replacement as a result of this issue experience running on 3 cylinders?

    Pretty sure one of my fuel injectors in leaking as I have intermittent starting issues if the car has been sitting for a few minutes to a few hours but never cold or just shut off. Smelled fuel the last time it happened. Hoping replacing the faulty injector or perhaps just replacing all clips and o-rings with the service kit will resolve my issue with no permanent issues.
    Likely need a new injector. Word to the wise, replace all 4

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  35. #35
    Veteran Member Three Rings
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    Would it be wise to probe the cylinder walls every 30k with spark plug changes to verify injectors aren’t leaking?

    Almost seems like it may be smart to proactively replace the injectors every 60-100k probably when you’re due for a intake valve cleaning.

  36. #36
    Established Member Two Rings
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    I dealt with the leaky injector issue early last year. I have a 2014 A4 at 92,000 miles, and I'm APR Stage 2. I had misfires for about a week on cylinder 1, and I couldn't figure out what it was. I replaced spark plugs, swapped coil packs, and replaced the O2 sensors. It was a leaky injector. I have lower compression on cylinder 1 than the other cylinders, but I don't seem to be burning oil at crazy rate... It was only like ~8% off of what it should be, I think. I'm honestly waiting for the day that this thing grenades itself between the injector issues and timing chains.

    The craziest part is that I had just replaced the injectors to avoid this issue. I think I was around 60,000 miles at the time.

    ...but that CTS Boss kit is calling my name... What is wrong with me?

  37. #37
    Veteran Member Three Rings
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    Are these leaking injectors an Audi problem, or an inherent design flaw with modern day precise direct injection? I mean you never hear of an issue like this with port injection...let alone taking the engine with it...

  38. #38
    Veteran Member Four Rings adamazing's Avatar
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    I just had my injectors replaced 3 weeks ago because they were starting to fail. I have 50k miles.
    Thankfully I caught it in the very early stages of failure. Cylinder walls are still perfect and compression only has a 1% variance across all four.



    2013 A4 Quattro Green Black Iridescent / APR E85 Stage 2 / AG F421 Polished Copper / Eurocode FMIC + HFC / AWE Quad + CF Diffuser
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  39. #39
    Veteran Member Four Rings Theiceman's Avatar
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    Quote Originally Posted by ps2cho View Post
    Are these leaking injectors an Audi problem, or an inherent design flaw with modern day precise direct injection? I mean you never hear of an issue like this with port injection...let alone taking the engine with it...
    I am sure you are on to something with the scoring, as there is a nice fresh gas shower to wash all your precious oil off your cylinders

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    Note: PMs disabled, please keep requests for technical help on the forums to benefit everyone:

  40. #40
    Senior Member Two Rings
    Join Date
    Apr 12 2018
    AZ Member #
    416984
    Location
    ga

    Quote Originally Posted by adamazing View Post
    I just had my injectors replaced 3 weeks ago because they were starting to fail. I have 50k miles.
    Thankfully I caught it in the very early stages of failure. Cylinder walls are still perfect and compression only has a 1% variance across all four.
    What symptoms did you have to know they were beginning to fail? I am hoping I caught mine early as well, since no fault code has been thrown just stumbling to crank if it sits for a few minutes but doesn't cool down all the way before attempting to crank.

    How did you or your shop assess the condition of the cylinder walls?

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