Question about 2006 GMC Envoy

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2006 GMC Envoy does not always start.

Most of the time the vehicle starts fine but sometimes the engine won't turn over. The headlamp washer turns on and squirts water on the headlamps. also, the cd player seems to make a whirling sound and the clock resets to 12:00. I guess that causes enough drain on the ignition system to prevent the vehicle from starting. However, I found that by leaving the ignition on for about ten seconds, the engine will start after a few attempts. Somehow, this allows the ignition to "catch". Any suggestions on how to correct this "short" or malfunction? Thanks!

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: headlamp

There are 2 screws one the frame above the headlight after you open the engine hood. One screw has a long shaft, both need to be removed and will release the headlight housing. Next you need to pull the headlight assembly out which might mean you have to push down on the plastic surrounding the assembly. Once the assembly is out all you need to do is pull up on the clip that holds the wiring and pull it off. There is a plastic ring around the lightbulb that you need to screw off and then you'll be able to pull out the bulb. Make sure you have a new HB5/9007 type replacement bulb, and do not touch the glass on the bulb with your fingers, if you do take a soft cloth and wipe the glass to remove any oils. After you place the new bulb in the assembly, put everything back in reverse of how you removed it and you'll be finished.

Posted on Nov 04, 2008

  • 145 Answers

SOURCE: changing headlamps on 2003 bmw 325xi

I am assuming that you have a burned out head light bulb.
1) Open hood.
2) Working in back of headlight assembly, grasp rear of bulb socket (harness connector) and turn counterclockwise 90 degrees. Pull bulb out of headlight assembly.
3) Disconnect harness connector from bulb (gently pry, it's plastic)
4) Installation is reverse of removal. (Do not touch halogen bulb with bare skin-oils from hand will cause bulb to burn out.) Align tabs on bulb base to cutouts on rear of lens assembly. (Note bottom tab is wider than other two) Secure bulb by rotating clockwise 90 degrees.
Low beam bulb H9006
High beam bulb H9005

Posted on Jan 23, 2009

  • 1 Answer

SOURCE: Our 2004 GMC canyon will not start from time to time.

sell the truck and get one that does not have the security system that locks out the engine starting. I wish I could but I can't for a year or so.

Posted on Feb 09, 2009

  • 5 Answers


I have had the same problem and have managed to Fix it!!

Just behind the headlamp is a black box that contains the engine management units. You have to remove some of this box......First unclip the two clips nearest to the engine and remove the top cover of the box. Then there are another two clips one by the wing and one by the engine that will release the lower section of the box. You will need a large flat screwdriver to open the final clip at the front of the box and, with some care, you can remove the lower part of this box. The engine management units ( the two silver boxes inside the balck box) will be left in place and should be disturbed as little as possible.

When this is done you can get access to the bulb. First remove the rubber cover from the rear of the light assembly. Then you need a flat mirror so that you can see inside the headlamp to see the connector, clip and bulb. Pull off the connector to the bulb - you must do this with the bulb still in place (you will not be able to remove it with the connector still fitted). Then you have to push the clip at the top to unlatch it and allow it to hinge down away from the back of the bulb. I bent an old screwdriver to 90 degrees and filed a small notch in it to help me push the clip and unlatch it. Note which way up the bulb comes out so that you can fit the new one the same way up. I know it will only go in one way but getting it correct first time saves messing about for ages! With the new bulb fitted, push up the clip and latch it in place again. Then fit the connector and test it before you refit the rubber cover and the black box. Remember to take care when removing and refitting the black box. It does come off - honest!

Good luck

Posted on Mar 14, 2009

  • 2 Answers

SOURCE: How to replace a headlamp on 2005 VW Beetle

I had this same problem, I used this blog link to replace the bulb in both of my headlights. I'll be honest here and tell you the passenger side is much easier than the drivers side. I'd recomend two of you be there for the first one, after that it's a one person job.

Posted on May 20, 2009

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