engine misfire

1999 Chevrolet Tahoe

5.7L V8

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1 answer

Question - fpk, San Marcos, CA, February 08, 2010, 22:29

Cylinder #5 misfires only at idle. Checked compression, came out low compared to other cylinders. Squirt oil into cylinder, recheck compression, compression comes up. Rings? Can’t pass smog. mileage = 205k

Best Answer

(1 rating)

autotechpat, February 08, 2010, 23:22

Unfortunately it does sounds likely to be a ring problem. A cylinder leakage test may show more information.

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