2002 Chevrolet Avalanche Repair Question
Topics covered: Noise, Oil pressure, Mechanic.
Mileage: No information provided.
Mileage: No information provided.
Asked on February 17, 2010
2002 Chevy Avalanche rocker arm tapping noise
Noises problem
2002 Chevy Avalanche V8 Two Wheel Drive Automatic 129000 miles
rocker arm tapping noise when I start after truck sits all night after warm up noise stops and oil pressure is high when driving up to 80 at idle is 40+ could this be oil pump clogged?
2002 Chevy Avalanche V8 Two Wheel Drive Automatic 129000 miles
rocker arm tapping noise when I start after truck sits all night after warm up noise stops and oil pressure is high when driving up to 80 at idle is 40+ could this be oil pump clogged?
Asked by hardatitAnswer
Replied on February 18, 2010
It is possible, but you would want to have oil pressure checked with a mechanical gauge first.
Other possibilities, are collapsed lifter, bent rocker arm, bent pushrod, or clogged oil galley.
If you want to do it yourself, start with oil pressure check (mechanical gauge), then remove valve covers and inspect for any areas on valve train that appear "dry". Check rockers for excessive play.
