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1-19 of 19 Results
  1. 911 Problems Forum
    Ive had my 08 Duramax for 6 months now and have had no issues with the truck other than mechanics screwing up on it. The fuel tank had to be replaced twice when I bought it from the dealer but since then no issues. After 10k miles I had the same dealership change out the fuel filter which marked...
  2. 2020+ LM2 Duramax Powertrain
    Have a '21 Sierra and getting ready for the first fuel filter change. From the owners manual it reads real simple, including the priming. Are there any tips that people can pass along in doing this? Do know to not over tighten the housing when reinstall it or there is a potential for the head...
  3. 911 Problems Forum
    Any ideas as to what this could be? Did I miss something? There were no instructions to remove anything that may have prevented movement during shipping. It will not push down even with nothing hooked up. 2004.5 LLY 380k miles.
  4. Maintenance
    So got in some new fuel filters and Delco has changed the filters, and not for the better. The center 'fuel polisher' section is gone and one layer of filter media is gone. And what I can only describe as the most asinine thing I have ever seen in a filter, the area at the bottom of the filter...
  5. 04.5-05 LLY Duramax Powertrain
    Short story version: Truck sat for two weeks while I waited on parts and time to swap out steering gearbox, pitman arm, and tie rods. That all went fine. Went to take it to the shop today and it stalled out, found that it lost prime. Got it running again and got another 2-3 miles before it...
  6. 11-16 LML Duramax Powertrain
    I've developed an issue with my fuel system where it's losing prime. You can press the plunger crack the bleeder screw to get the air out and it'll be firm for about 3 seconds then it's soft again. Also it does not matter on fuel level. It does it full or empty. I've also not noticed any fuel...
  7. 11-16 LML Duramax Powertrain
    I have a 2013 and about 2 weeks ago i had the p0191 code and i replaced the the FPr2 on the LH fuel rail it cleared the p0191 code and then a few days later the check engine light came back on and started throwing the P0087 code i haven't noticed any changes in performance or this all started...
  8. 01-04.5 LB7 Duramax Powertrain
    Hey everyone new to the forum, Recently purchased 2nd duramax (04 LB7 with 146k, Cali truck) after owning a lbz previously. Having issues starting. Truck sat for about 4 years in my brothers truck yard but ran great beforehand. Fired right up first day we pulled it out but now seems to have a...
  9. 04.5-05 LLY Duramax Powertrain
    Hi There. I just replaced the fuel filter, WIF sensor, and fuel filter head assembly on my 05 LLY. I replaced the filter head assembly because the threads were leaking and air bubbles were coming out of there. Once I replaced that, there were no more air bubbles or leaks so I thought that had...
  10. 04.5-05 LLY Duramax Powertrain
    Hi there. I just recently replaced my fuel filter on my last oil change. When doing so I thought I did everything correctly, including lubricating the o-rings and bleeding the air out of the bleeder screw. But after the truck sat for 2 days, when I tried starting it, it fired up for 4 seconds...
  11. 01-04.5 LB7 Duramax Powertrain
    Ok yall im stumped. I have a 2003 chevy 2500HD with the 6.6duramax. I have replaced the injectors and hard lines along with the fuel filter head and fuel filter but now i am constantly losing prime. I had it running after the injector change for about an hour then it would shut off and...
  12. 07.5-10 LMM Duramax Powertrain
    I have an LMM Duramax and im just wondering how accurate the sensores are. If running Mobil, Amsoil, Rotella oils that extend change intervals will the life level run out before the interval, and same with an after market fuel filter like AFE. Thanks.
  13. 04.5-05 LLY Duramax Powertrain
    So I stopped for fuel today because I was at an 1/8th of a tank (low fuel light was NOT on). After getting fuel, the truck would start without any problems or hesitation but would then shut off after about 1 second of running normally. It didn't chug or sputter before it died either, it just...
  14. 01-04.5 LB7 Duramax Powertrain
    Just put a new fuel filter on. Everything went smooth then lost prime after starting. Re-primed and noticed fuel leaking from the top. Looks like the oring shifted when I spun it on. Now I cannot get the filter off to adjust the oring. Seems as though the housing is just spinning. Any ideas?
  15. 01-04.5 LB7 Duramax Powertrain
    bought an 01 max 2 months ago with 143.000 miles... drove truck for two days and truck starts to knock and white smoke really bad.. ran the tests to check and showed bad injectors and diesel in oil... call dealer with vin to find out truck has already had them replaced at 25 and 55,000.. so i...
  16. 07.5-10 LMM Duramax Powertrain
    I want to buy a Delco fuel filter from Merchant Automotive (based on recommendations from this forum). They list a Delco Fuel Filter - Item TP3012 - but don't say anything about model year. I have a 2007.5 D/A - new body style. (URL for the filter is OEM Replacment Fuel Filter) My question...
  17. Maintenance
    Can anyone tell me the difference between the old style fuel filters (made by AC Delco) that do not have the stepped sides vs. the new one that do? (Outside of offering more clearance, that is . . .) Anything wrong with using up my stock of old style filters?
  18. 04.5-05 LLY Duramax Powertrain
    Truck just started to choke out a bit at around 55mph. Fuel economy has gone down roughly 2 mpg... The fuel filter was changed 9 months ago and only has 7500 mile on it. What's goin on? Should I change the fuel filter anyways?
  19. Transmission Shop
    Just a note as I am seeing this often.... Problem: trans holds gear and will not shift into next gear at wide open throttle unless you lift a little bit. Whats happening is truck is not making the tq. where it needs to make the shift. The problem is it is not getting enough fuel to do so...
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