Question about 2004 Chevrolet Silverado 1500 Crew Cab

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2004 silverado Please help, Every morning when i start my truck, i hear a clicking sound for a short while, the sound goes away after any where from a minute to 3 or 4 minutes. I popped the hood but had a hard time pin-pointing the sound. at first i thought it might be a sticking rocker, but i dont think the sound is coming from the top-end. any insight would be helpful. Thanks

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  • fester2 Oct 20, 2008

    thanks for the response:
    Not really a knock bit did try Wynns engine tune up.(cures noisy lifters, knocks and pings etc.)
    starting to think maybe AC compressor kicking in, or maybe timing chain,either way, don't think it's entirely normal,like i said before,the sound does not sound centralized to top end.
    thanks for all your help


  • Anonymous Apr 06, 2009

    Similar problem, though it happens after shutting the engine off... clicks for 10 seconds or so then stops. Loud clicking- not knocking, coming from the front passenger side, possibly in the vents, though the fan/A/C/heat were all off. Any ideas? This is on a 1993...

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THIS IS NORMAL noise for your truck. carbon buildup on pistons causes a cold start knock until warms up. you can run some top engine cleaner thru engine to help. but noise is nothing to affect life of engine

Posted on Oct 20, 2008

  • TripleTauto
    TripleTauto Oct 21, 2008

    without hearing noise myself all I can do is tell you things i have experienced. These engines are known for a coldstart noise my suburban has a knock as well as every truck i see come thru here.this noise sounds like bottom end noise. try removing belts and cranking up see if noise goes away this will confirm or eliminate all belt driven items.

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