Question about GMC Cars & Trucks

1 Answer

Hi there , I have a 02 gmc envoy. Headlight problem. Recently replaced the relay for low beam due to the problem but it still exsists 2 months after replacing the relay. What could be the problem ?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • GMC Master
  • 42,064 Answers

Could be the light switch or if it has a light control module a faulty module

Posted on May 15, 2017

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

2004 gmc envo when engine is off and in park headkights stay on


Do they stay on after key is removed from ignition lock cylinder ?

Check HDM relay 46 in the under hood fuse / relay box . Relay contacts stuck closed , possibly ! The relay supplies B+ voltage to the low beam fuse's ! Let me know if that works or not . If not , will go on too more diagnostics steps .

Jul 31, 2016 | 2004 GMC Envoy XL

3 Answers

Checked fuses , relay, dimmer switch in my 2004 GMC envoy, still no low beam headlights. Pleas help:(


If you have checked and discounted the relay, the only things left are the headlight switch and the wiring and to the headlights. Try the switch first. It is not impossible that both bulb's low beam filaments may have fused at the same time, unlikely but not impossibly. (It will not be fuses, unless two fuses blew together).

Apr 07, 2011 | 2004 GMC Envoy

1 Answer

2006 GMC Envoy low beam headlights dont work. All fuses, and bulb filements, are fine.


Hello, try to start by checking the headlight relay and headlight fuse. You also may want to check to make sure the bulbs aren't blown out. If those parts check out to be fine and in working order, you may need to replace the turn signal assembly in the steering column. This part controls the hi/low beams. This may sound crazy but, when GM wired their older trucks, they wired the headlights to go from the battery, to the hi/low beam switch, then to the headlight switch (to the left of the steering wheel) then out to the light bulbs. You can kind of test to see if this part is good by making a fist and (with your headlights on) gently hitting the plastic cover for your steering column that is right behind your actual steering wheel. This could cause your headlights to flicker on and off.

Thanks

Aug 09, 2010 | 2004 GMC Envoy

2 Answers

Both lowbeam headlight not working


Duralast / Relay - Headlamp Part Number:
20601
Autozone: $39.99 I had the exact problem with my 2004 Envoy. You need to replace the Headlamp Relay. This is a very simple fix. The relay is located under the hood in box just above the battery. Pull the cover off of the box, look at underside of box to see layout of relays/fuses, i do not recall the exact abbrevaition used for the headlamp relay but there are only two relays in there that look like the one you need, just play with those two and you will get it. Do not take it to the shop, my wife took ours in and they charged us way to much to diagnose such a simple fix. You can test it before you buy the part by switching the relays that are the same around and seeing if your headlights work (they will). It is as simple as changing what looks like a big fuse.

Feb 17, 2010 | 2004 GMC Envoy

2 Answers

My low headlight in my envoy 2002 is down i checked the fuse and still no luck


If this low beam is on one headlight only, I would say that the light is burnt out. Both hi and low beams are on the same bulb.The bulb has 2 filiments, one low and one hi. If you get just one light out , it is most likely a bulb. If you get both sides not working at the same time, it could be something else. You have checked the fuses and deemed them to be o/k. Then you should be checking for headlight bulbs.

May 05, 2009 | 2000 GMC Envoy

1 Answer

2003 GMC Envoy Low beam headlights will not work.


I would start by checking the headlight relay and headlight fuse.  You also may wanna check to make sure the bulbs aren't blown out.  If those parts check out to be fine and in working order, you may need to replace the turn signal assembly in the steering column.  This part controls the hi/low beams.  This may sound crazy but, when GM wired their older trucks, they wired the headlights to go from the battery, to the hi/low beam switch, then to the headlight switch (to the left of the steering wheel) then out to the light bulbs.  You can kind of test to see if this part is good by making a fist and (with your headlights on) gently hitting the plastic cover for your steering column that is right behind your actual steering wheel.  This could cause your headlights to flicker on and off.  It's not 100% guarenteed that this method will work, but it may.  
Any questions, just ask!

Feb 02, 2009 | 2003 GMC Envoy

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...