2003 GMC Envoy Read End Noise

2003 GMC ENVOY
89,000 MILES • 6 CYL • 4WD • AUTOMATIC
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RUSS-99
  • MEMBER
  • 1 POST
When I excelerate my auto makes rear end noise?
Like a humming noise?

Could it be the followint

A. Muffler
B. Catalytic Converter
C. Rear End
Feb 18, 2010 at 12:40 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
noises are usually associated with drivetrain issues. Yo need to have a pro look at this to give you a correct diagnosis.
Feb 28, 2010 at 3:05 AM
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