Search results

  1. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    HEY MAN. I got my compression test done with, I think it’s pretty low I got an average of 140psi all around the highest being 160psi on cylinder 2 and the lowest being 115psi on cylinder 5. Are those concerning? I removed all spark plugs when I did it, unhooked the fuel pump relay so i wouldnt...
  2. Beetlejuice

    Engine knocking

    Its bare bones stock. I’ve replaced stuff like TPS, fuel pump, fuel filter. ICM, spark plugs, IAC, all those little guys on the TBI i’ve also rebuilt the TBI with new gaskets and regulator. New oil sender unit the one above the oil filter. It’s an ‘88 Sierra 2500 5.7l 99k miles Imm the 3rd...
  3. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    Yessir! Will do I’ll try to find a good, GM manual. Bout to do this compression test will update this thread when it’s both said AND done
  4. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    Thank you so much Schurkey, I just made another post thinking i wouldnt get much traction on this one considering its a jumbled mess im going to go to Autozone now to get a compression tester. Firing orders correct and I’ve been literally and I mean literally checking the timing like 10 times to...
  5. Beetlejuice

    Engine knocking

    Im getting codes 31,32,33,34,41,43,51,52,54, and 55. No matter what the timing’s set at it knocks but it wasn’t doing that before I tweaked with the timing. I’m wondering if my ECM’s bad or something I know that’s an easy thing to blame it on but the motor’s only got 99k miles on it I’ve been...
  6. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    Alrighty I cleared em and now I have 11 codes instead of 7…. Could it be a bad ECM I wonder?
  7. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    I say $1500 like thats chump change but I meant to also add the truck itself and that was $750 so that and another $750 in tools/parts whereabouts.
  8. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    On it, I’ll go do that now thanks for the reply! I’ll let you know what comes back. I hope it’s nothing too concerning but if im screwed I’m screwed. Only put in about $1500 into it so far
  9. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

    Not sure if I’m posting these against some sort of rules, please let me know so I can fix my post. New to posting but I’ve been lurking on this forum and a bunch of others for a couple years now. PLEASE HELP Any questions anyone has I will gladly answer. Bought this ‘88 Sierra 2500 few months...
  10. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

  11. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

  12. Beetlejuice

    ‘88 Sierra engine’s knocking, timings right at 0° no CEL but i have 7 codes on my code reader (images below)

Latest posts

Members online

... and 34 more.
Total: 2,215 (members: 84, guests: 2,131)

Forum statistics

Threads
64,654
Messages
1,398,040
Members
52,155
Latest member
hobbiest

Share this page

Top