Discussion in 'GM Powertrain' started by sandimeadows, Aug 15, 2010.
My 2005 Envoy just started making a "whining" noise when I accelerate???
my 2005 GMC Envoy just started making a "whining" noise when I accelerate????
Welcome to the club. Check the alternator, sounds like what my wifes'05 trailblazer did. She has the 4.2 motor.
Please do not double post in different area's of the board.
Did you ever get this solved? My neighbor has a sweet looking 2005 Envoy with low miles, thing looks pristine.
My 2003 Envoy has 180,000 on her 4.2 I6 4x4. My wife now drives her doing a lot less driving than i was doing. I replaced the water pump and alternator at about 140K and the whining stopped. Alternator was on the way out and my mechanic advised to change the water pump too. No more whining noise
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