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How do i replace a heater control valve on a 2004 gmc envoy

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Removal & Installation

Blazer, Jimmy, Xtreme & Bravada
The mode actuator is located on the top left side of the HVAC module.

  1. Disconnect the negative battery cable.
  2. Remove the knee bolster.
  3. Remove the right side driver knee bolster bracket from the steering column bracket and the intermediate bracket.
  4. Disconnect the vacuum connectors from the mode actuator.
  5. Remove the actuator rod retaining clip.
  6. Remove the actuator rod from the mode door lever.
  7. Firmly pull on the mode actuator in order to remove the actuator from the HVAC module.

    Is this what you were looking forHow do i replace a heater control valve on a  2004 - 0996b43f80205715.jpg

Posted on Feb 17, 2012


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Posted on Jan 02, 2017

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SOURCE: Speedometer on 2004 GMC Envoy not working. It

There is a recall on the panel Cluster... call your dealer and have it checked out.. mention the recall...

Posted on Jun 05, 2009

  • 91 Answers

SOURCE: 2004 GMC Envoy has trouble idling

Try the fuel filter. Sounds like the engine might be running rough due to weak fuel pressure. Its cheaper to replace, especially if it's still original from 04. Try running some injector cleaner through a couple of tanks of high octane gas.

Posted on Aug 06, 2008

  • 1 Answer

SOURCE: Gmc Envoy 2004 Seat heaters

I have the same problem with my 2004 HD Sierra. I found that the "MBEC" 50 amp fuse in the under hood fuse box had blown. Replaced that and it works now. This has happened twice in 2 years.

Posted on Dec 30, 2008

  • 3287 Answers

SOURCE: replace thermostat on 2004 gmc envoy

The thermostat on this vehicle's (the Envoy & Trailblazer are essentially the same vehicle) In-line 6 cylinder engine is on the driver's side of the engine, below & behind the alternator. It is not found in the typical location (which may be for the 8 cylinder engine), in an answer above.

Most directions outline removal of the alternator to gain easy access to the hose clamps, bolts and housing of the thermostat. I have located a site that after free registration, has detailed instructions on how to do this job, and the link below that describes an easier method with photos. Check out:

Posted on Oct 19, 2009

  • 85 Answers

SOURCE: Where is the cruise control fuse for GMC Envoy

its in the fuse panel under the hood there should be a chart on the cover

Posted on Feb 24, 2010

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