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fuel filter

  1. LB7 losing prime

    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...
  2. Oil life sensor, fuel filter life sensor

    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.
  3. Truck wont start, fuel gauge is dead, digital message center only displaying dashes??

    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...
  4. fuel filter stuck and leaking

    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?
  5. injector ?s

    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...
  6. Are all Delco fuel filters the same, regardless of model year?

    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...
  7. Fuel Filters, New Style vs Old Style

    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?
  8. "choking out" at 55mph???

    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?
  9. Trans won't upshift at WOT

    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...