Recent content by ANder

  1. A

    99 tahoe with 5.7 won’t stay running!

    Lol yeah they have given their advice already
  2. A

    99 tahoe with 5.7 won’t stay running!

    I did not test voltage at pump, but the odd thing is it will rev up as high as I want in park or neutral. But when loaded in gear and hitting gas it falls on its face. If I barely touch the throttle it will get up to speed and run fine but the second I lean into it, it wants to die. Idles fine...
  3. A

    99 tahoe with 5.7 won’t stay running!

    So the tech had the diag comp hooked up while driving in parking lot and said this: All scan data, including fuel trims, 02 readings, MAF sensor value and MAP reading are all normal. idk what voltage should be while looking at the relay. I swapped fuel pump three years ago. Replaced it with...
  4. A

    99 tahoe with 5.7 won’t stay running!

    What you described is correct. Only does it with load in gear when stepping on throttle. Have not read fuel pressure going down road.
  5. A

    99 tahoe with 5.7 won’t stay running!

    No lights flashing. Have not changed fuel pump relay. Delphi FG0089 is the pump I installed. I wired in the new harness three years ago when the pump failed. Ran like a top after that. So I replaced the pump this time with the same Delphi part. I do not have a spark tester but do have a...
  6. A

    99 tahoe with 5.7 won’t stay running!

    Ok I see code p0141 o2 sensor had a bad reading. Could that really resolve this issue?
  7. A

    99 tahoe with 5.7 won’t stay running!

    So here is what the tech said at the second shop I brought it to. Vehicle initially started very hard, like a lack of fuel pressure, but eventually started and continued running. Scanned codes. Verified EGR operation and the actual position matched the desired. All scan data, including fuel...
  8. A

    99 tahoe with 5.7 won’t stay running!

    FG0089 is the Delphi part number. No codes. Will check fuel pressure while running tomorrow evening. I have not swapped relay. Thanks for giving me a couple things to think about. It won’t stay running in order to check pressure while driving. Brought it to the shop because it would not start...
  9. A

    99 tahoe with 5.7 won’t stay running!

    Yes. Brand new filter today. Thanks for the reply!
  10. A

    99 tahoe with 5.7 won’t stay running!

    Also when I cycle the key the pressure gets up in the 50’s and pretty much stays there. First turn of the key it hits 40 and stays there.
  11. A

    99 tahoe with 5.7 won’t stay running!

    Thanks for reply. It’s a four door. 5.7l with 4l60 trans. The pump is a Delphi. I brought it to a shop to get diagnosed. They told me it was the pump. Changed it myself at home. No go. Thanks.
  12. A

    99 tahoe with 5.7 won’t stay running!

    Hey all. I have a 99 tahoe with the 5.7l motor. Just replaced fuel pump and filter. It will start after cycling the key a few times. It will rev in park and neutral as high as I can get it. If I put it in gear and give it gas it will run, and idle. If I try to just roll in forward or reverse it...
  13. A

    Front end issue

    Greasing splines sounds like a good idea thanks!
  14. A

    Front end issue

    have a 99 Tahoe LS with a 5.7L 4x4 4l60 trans. I start vehicle. Put trans in reverse. At rolling speed after about a foot or two I hear a clunk and feel it in the front end. It drives fine after that initial clunk. Does not happen when starting from a stop while driving. Brake pads...
  15. A

    Clunk in front end when reversing

    Links are good. Bushings are decent. Not new though. Any suggestions for front end kit
See more

Forum statistics

Threads
129,187
Posts
1,811,840
Members
92,288
Latest member
DLM_GT

Latest posts

Top