Question about 2003 Chevrolet Avalanche

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Piston slap I think I have piston slap. Started in cold weather. Only when engine warmed up. Now is as soon as it starts and does not stop. Is this piston slap and how do I fix it?

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I think my friend, you should look towards getting your engine replaced. If you hear like a clicking or clunk noise while you drive, the internals of your engine are worn out and hitting against each other.
Your options are:
1. Scrap car or sell it
2. Swap engine for a new one
3. Get the engine reconditioned

Posted on May 04, 2013


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SOURCE: 1996 C2500 Suburban 7.4, hard starting and has OBDII code of P174

p0174= too much oxygen. have your mass air flow sensor cleaned or replaced

Posted on Feb 18, 2009

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SOURCE: engine wants to stall in cold weather

I don't beleive this is a weather problem. Try tuning it up and see if it helps. Good luck

Posted on Mar 23, 2009

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Thank you for using fixya and good luck.

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