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Thread: 2005 gmc envoy

  1. #1

    Default 2005 gmc envoy

    My 2005 Envoy just started making a "whining" noise when I accelerate???

  2. #2

    Default 2005 GMC Envoy

    my 2005 GMC Envoy just started making a "whining" noise when I accelerate????

  3. #3


    Welcome to the club. Check the alternator, sounds like what my wifes'05 trailblazer did. She has the 4.2 motor.

  4. #4
    TrailLeadr's Avatar
    Join Date
    Jun 2005
    Coventry, Rhode Island


    *Threads merged*

    Please do not double post in different area's of the board.
    Rhode Island

  5. #5


    Did you ever get this solved? My neighbor has a sweet looking 2005 Envoy with low miles, thing looks pristine.

    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  6. #6


    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

    2011 GMC Sierra 2500HD SLE 4WD/Z71 Crew Cab Gray Green Metallic 6.0 Gas 6spd Auto 3.73 gears, HD locking rear differential. 18"Alum Wheels (Stock) Stock Michelin LTX AT-II Tires, Banks Monster Exhaust, Westin Platinum SS Oval Step Bars, EGR Window Deflectors, Extang Trifecta Tonneau, Front and back Weathertech Digitech liners. Factory Remote Start with Onstar App on iPhone.

    2003 GMC Envoy SLE Black 4WD 4.2 175,000 Miles all original drivetrain and runs like a champ and no rust or rot!

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