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    Thinking teardown

    Thanks Schurkey; Your points are well taken. I am at least going to pull intake and heads and get the heads checked out by machine shop. Your input is always paid attention to and appreciated. I will always be a novice at these things but damned if I will give up. You guys keep me going...
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    Thinking teardown

    Thank you Road trip. I think I will pull the top end off and take the heads in as you suggest. Your style of walking people through these headaches is much appreciated and offers me some encouragement. By the way, I did buy the truck at a great price and did so with the intent of putting a...
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    Thinking teardown

  4. A

    Thinking teardown

    Hi Roadtrip; You have helped me in the past when I was looking at ecm as possible culprit and your wiring diagrams and detailed information were extremely helpful. I have timed this engine so many times I fear I may have to buy a new bulb for timing light. I set it at 0 and mark has been...
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    Thinking teardown

    Thank you Sean
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    I’m a DA…what maintenance have you screwed up?

    Fancytbi; Were those the nicely done battery and alternator cables that I have seen on the forum? Can you send link? Thanks
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    Thinking teardown

    Thank you. Oddly, the plugs look story book perfect. Will have to google wideband 02 sensor. snap on shows good numbers on all that it will read.
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    Thinking teardown

    Thanks Cummins. Pretty carefully adjusted valves multiple times. I think I had them right on the mark. Oddly, I tried to adjust while running and when I put socket on adjusting nut the engine wants to die? Never experienced that before. So I adjusted 1/2 on tdc #1 and half after rotating...
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    Thinking teardown

    Looking here for guidance. I have posted multiple times about 92 K1500 Regular cab shortbed that I purchased in November. I have been through a diagnosis jungle since then. I have a good friend who is remote from me who has helped me try to troubleshoot, (he is smarter than me) by the way...
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    Vibration?

  11. A

    Vibration?

    Should hammering on front of pass. exhaust manifold while using timing light cause change in timing?
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    Vibration?

    Yes, seem to be. With it up in the air all looks good. Somebody installed this motor after 2019 and could never have had it running right with bad fuel pump and several sensors. Motor assembly and install appeared to have been done by someone with good sense. They installed hydraulic roller...
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    Vibration?

    Hi Schurkey; My brick tells me no knock counts at idle. Is this a good or bad thing? When ecm wire disconnected timing holds steady on 0. When connected the timing fluctuates 2-4 or so degrees. The truck idles sweet with no pops or stumbling. When I grab a handful of throttle while sitting...
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    Vibration?

    I appreciate comment. What I so poorly conveyed was that when I found the 5 lb. I installed new Delphi. Thank you will correct post.
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    Vibration?

    Hello; Just deleted long winded post begging for help. After all of the hours invested in troubleshooting I have come to the conclusion that my remaining problem may well be a vibration. Can anyone tell me how to troubleshoot a possible flex plate problem or any other reciprocating vibration...
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    92 GMC troubleshooting

    Thanks Again; I was just looking back through here and saw I had not responded to your last message. I appreciate your knowledge as well as your wit.
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    Cold start problems with 1992 GMC 5.7 liter

    I should add that the rough running clears up well before it kicks into closed loop, according to my scanner
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    Cold start problems with 1992 GMC 5.7 liter

    No, does not continue after about a minute or when I goose the throttle a bit.
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    Cold start problems with 1992 GMC 5.7 liter

    Thank you caminonut. I recently replaced the cts but you know how the new ones are sometimes defective. Will try to ohm it out to check.
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    Cold start problems with 1992 GMC 5.7 liter

    Thank you wic. Set at zero with wire unhooked but will recheck today.
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    Cold start problems with 1992 GMC 5.7 liter

    I can't find this thread in engine performance and maintenance so lord knows where I sent it but will add this anyway. Hopefully someone will find it. "With my computer skills I might as well drive down to the coast and put my question on a message in a bottle. I started the truck this...
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    Cold start problems with 1992 GMC 5.7 liter

    I have tried to find in old discussions anything that applies and can't to this point. Have truck running quite well after a few months of headaches. Suddenly it started running super rough when cold started. I can rev it up for a bit and it straightens out. If I disconnect the wire for...
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    Slow Roller

    Good write-up I look forward to your progress.
  24. A

    New-to-me truck first tune-up 5.7L vortec

    Plugs 5 and 7 on the passenger side? Mentioned a couple of times above. Am I missing something?
  25. A

    starter only working when jumping engine relay,

    Is this a GM?

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