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2000 Chevy Tahoe Valve Job

Tiny
TEXASRED47
  • MEMBER
  • 2000 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 68,500 MILES
Tahoe was running poorly. Mechanic said plugs and wires needed. Now runs great on the road, but a very rough idle once it heats up. Now he says it has low pressure in one cylinder and needs an expensive valve job. Anything I can do?
Tuesday, May 26th, 2009 AT 2:11 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
A cylender with low compression is ususally felt regardless of engine speed. Did he tell you what the compression was for each cylender? Also, cold or hot, low compression is felt. I would recommend having the compression retested. It's not hard to do. Here is a how to for checking compression. The gauge can be purchased from this site, or some parts stores will rent them.

https://www.2carpros.com/dia/how_to_check_compression.htm

Let me know what you find. That way we can be sure if this is the problem. Also, keep in mind, this vehicle has low mileage; therefore, I really think we need to look at something else. That is my gut feeling.

Joe
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Tuesday, June 9th, 2009 AT 11:35 PM

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