1997 GMC Sierra Engine knock cold

1997 GMC SIERRA
141,000 MILES • V8 • 4WD • AUTOMATIC
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DENNIS_MAINE
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  • 7 POSTS
My truck has a slight knock when started cold. Louder in cab than under hood. Goes away after 15 - 20 sec. Had noise for 60000 miles, seems no worse.
Feb 13, 2010 at 8:07 PM
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HMAC300
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this knock was a problem during those years, it won't hurt a thing.I think there was an oil filter that would help it , i think it was an ac 1218 but not sure though.
Feb 15, 2010 at 6:27 PM
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DENNIS_MAINE
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Thank you. I thought it must be harmless, but wanted another opinion.
Feb 15, 2010 at 7:08 PM
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