My truck has a knock when I first start it but only when the ambient temp is below about 40 degrees. All summer long , I have no knock.
Jul 19, 2009 at 9:10 PM
1997 Chevy Tahoe Cold engine knock
1997 CHEVROLET TAHOE
CAM-MAN
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Hi there,
what engine oil are you using? Have you checked the oil pressure with a mechanical gauge when cold?
Mark (mhpautos)
what engine oil are you using? Have you checked the oil pressure with a mechanical gauge when cold?
Mark (mhpautos)
Jul 20, 2009 at 1:56 AM
I have not put a mechanical gauge on it, but it's a good idea, and I will do it. I have been using Quakerstate. What are your thoughts on synthetics like Mobile 1? I also heard of 4 others with these same symptoms, and they were told it's a normal amount of piston slap. Any thoughts?
Jul 22, 2009 at 3:21 PM
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Hi there,
The syn oil may start an oil burning issue, the pressure test is the key just now, if that is ok, i would be thinking the piston slap may be the cause.
Mark (mhpautos)
The syn oil may start an oil burning issue, the pressure test is the key just now, if that is ok, i would be thinking the piston slap may be the cause.
Mark (mhpautos)
Jul 22, 2009 at 5:26 PM