Question about 1992 GMC Sonoma

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Tapping noice when the truck is running its sounds like tap,tap,tap,tap,tap,tap

When my engine is on it makes a tapping sound like right in the middle of the engine it sounds like tap,tap,tap,tap,tap,tap and i thought it might be my push rods. But what do you think?

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It could be a bent valve, push-rod/s, piston slap, connecting rod bearings,bad fuel, timing, could need a tune-up,knock sensor, bad fuel, or water in fuel. You can start by looking at the vehicles repair/maintenance history, preform a dry and wet compression test,and take it from there. If I can be any more help let me know, thank you.

Posted on May 31, 2009

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