Question about 2004 GMC Envoy
I have 60,000 miles on this engine. it started using oil at 55,000 up until then I did not have to add oil in between oil changes. There is a lot of talk that GM has problems with these motors. I checked the spark plugs and there is no oil foling they are very clean. There is no visable external leaks. Is it possible to have a intake manafold leak? There is a lot of talk on this problem, any ideas on this problem any help on this is greatly apreaceated
The intake manifold will cause oil to disappear,but the compression will not be even on all the cylinders if that is the case.have a compression test done,and a vacuum leak test.
Posted on Jul 13, 2009
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Posted on Jan 02, 2017
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