Mechanics

NOISE , AUTO TRANS, 4L 6CYL

2002 GMC Envoy • 6 cylinder 4WD Automatic • 120,000 miles

When at a standing idle or in park, I've begun to hear a sound like aluminum sheets vibrating against each other coming from underneath (most noticeable when in garage). Noise is not present all the time. If I depress the brake and then release quickly while in park, the vibration becomes louder for a brief moment. Checked trans fluid - OK. Have checked for loose hanger on exhaust. No problem there. Thoughts?
Avatar
Mhadams
June 13, 2011.




Check out the related content below while we wait for the question to be answered by a professional mechanic.


AD