2001 Chevy Tahoe Motor knocks loudly

Tiny
TRPTEG
  • MEMBER
  • 2001 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 13,900 MILES
It seems that my Tahoe isn't getting enough oil to the lifters or something. The motor knocks loudly for a few miles and then runs great. The gauge will bounce back n forth will it continues to knock. Any ideas on how to fix the problem?
Monday, August 24th, 2009 AT 3:17 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

I would be thinking that the oil pressure relief valve may be sticky, so the first thing to try is to add a good quality engine flush and get the oil up to normal operating temp, and then do a service with the filter, this may help clean out any muck that may be affecting the valve, start here first.

Mark (mhpautos)
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Monday, August 24th, 2009 AT 5:20 PM

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