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Thread: Knocking

  1. #1
    Join Date
    Jan 2016
    Posts
    89

    Knocking

    Engine knocks at idle. As soon as I hit the gas it's gone, but resumes as soon as the rpms go down to under 1000. It's an intermittent knocking, not pinging. It quiets down but is still present when the car warms up. Car is a fully stock 5-speed 89 with 135800 on it. Spark plug wires are all seated firmly at both ends. I dunked around with my exhaust manifolds once a while ago, but I was able, to my knowledge, to get them back on tight (those things are so hard to work with!).

    I'm sorta stumped cuz of the when-where-how it knocks.

  2. #2
    Join Date
    Jan 2016
    Posts
    89
    Oops. Meant to post this in the technical forum. Could a moderator move it?

  3. #3
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,532
    Temporarily remove all the belts and run the motor like that just long enough to verify if the sound is still there or goes away. The sound could easily be coming from an accessory or the supercharger.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  4. #4
    Join Date
    Jan 2016
    Posts
    89
    Alright, I'll try that sometime when I get some time on my hands. I know the AC is bad and also that the supercharger leaks from the snout. So we'll see! Thanks!

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