GMC Envoy - Recent Questions, Troubleshooting & Support


Try stepping on the brake when trying to shift with the key on. Then try starting im neutral or other gears to see if the neutral safety switch is bad in park. You may have a bad wire from the battery to power distrubution or bad ground. So many things it could be.

2004 GMC Envoy | Answered 3 days ago


There is a technical service bulletin regarding this problem with 2004 GMC envoy. Actually there are 3 separate issues with regards to the elecronic tailgate. The reason why the dealers are backordered is the part you want keeps failing after a time of being installed.

For the particular problem you have of the electronic latch not working, the bulletin recommends a inspection of the endgate connector C900. Look for the wires to be backed out of the connector or not properly crimped. To crimp you will need a crimping tool available at any electrical supply shop. The connectors can be had from the dealers.

The other solution referred to intermittent operation of the endgate but can apply in your situation also. For that, look for chaffing at the wire harness connectors for the endgate actuators located at the upper right and lower left latches. They have been found to be pinched up to 8 inches away from the actuators. In this situation it would be ideal to replace the connectors and install in a way so wires will not be pinched.

The other thing to look out for is dusty sensors. For this you will need to remove the tailgate trim panel and locate the 2 optical sensors on either side. You can feel them with your hand, they will be the size of a nickel. Clean all the dust under the trim. In addition to that you should open the switch and use contact cleaner to clean out any dust or debris inside there. There is no mechanical way to open the door once the electronic side has malfunctioned without damaging the door. I hope this helps.

2004 GMC Envoy | Answered on Aug 26, 2019


watch this video it will help you to remove rear spoiler.


https://www.youtube.com/watch?v=J5RnJDAIPsU

2003 GMC Envoy | Answered on Aug 24, 2019


This would be the shift linkage bushing, very common. When switching through the gears, the gear selector lights in the dash probably don't move from P.
s-l1000-lc0fb4u3kpfsmvmtlut5ghz1-2-0.jpg

2003 GMC Envoy | Answered on Aug 21, 2019


4.2L Engine the thermostat and the neck where the hose goes on is one unit $25 at autozone
  1. Remove the necessary coolant from the radiator.
  2. Remove the alternator, Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing.
  3. Remove the thermostat housing bolts.
  4. Remove the thermostat housing from the engine block.
  5. Clean all of the surfaces of the thermostat housing.
  6. Clean the sealing surface of the engine block.

2002 GMC Envoy | Answered on Aug 06, 2019


There may be four. Bank 1, sensors 1, 2 and 3 and bank 2 sensor 1. This link will help you find the sensor that you need.

https://www.youtube.com/watch?v=vAxuP9UVQPs

2002 GMC Envoy | Answered on Jul 26, 2019


There are two O2 sensors, one on the exhaust manifold on the right side (passenger side) of the engine, and one just after the catalytic converter.

GMC Envoy Cars &... | Answered on Jul 24, 2019


There is a linkage hooked to the indicator that may be broken

2003 GMC Envoy | Answered on Jul 23, 2019


was it jerking before change out --check installation of unit

2006 GMC Envoy | Answered on Jul 06, 2019


Could be many things. But spark and fuel most common. 1st, is car getting adequate fuel? Check fuel pump or fuel filter. Then spark. Use spark plug tester for spark. Then mechanic.

2003 GMC Envoy | Answered on Jun 25, 2019


Window fuse's and relay's may be up under driver or passenger side dash or behind glove box, under the hood and even under the seats, and finally on the ends of the dash. All passenger power windows and locks are controlled thru and get power from the master control switch on the drivers door.

Drivers door window gets used the most so it could be the motor, window switch, relay or fuse.
Could also be a broken wire in the rubber boot going from the door to the body. You will have to eliminate each till you find the culprit. Check that all switches return to neutral when released.
The motor and the relay are the most likely to cause this problem. Try swapping the relay with a working window relay. If it still doesn't work, remove the door panel and remove the window motor.
Turn the motor shaft in both directions by hand several turns. Then plug the motor in and see if the switch will now run the motor. Sometimes that's all it takes to get it working again. I have had to do this with brand new motors. If voltage is not present at the motor connector, either a bad switch or a broken wire exists. Make sure to check for voltage coming to that windows switch. Actually, GM use's a circuit breaker type relay for each window and one fuse for all the circuit breakers.

Try this....
Open the door, turn the key to the ON position without starting the engine and everything that makes noise is off. Lean down placing your ears close to the bottom center of the door or at the speaker grill. Press the window switch UP and DOWN. Listen for the window motor. If heard the drive is damaged. If not heard, turn key off and locate and replace the relay with one of the other window relays. Check window again. If it works now, get a new relay. More often than not, removing the motor and turning it by hand will get it working good as new. I have had to do that with Brand New motors! So try it.
If all has failed, with the door panel still off, check for voltage at the motor connector when pushing the window switch. No voltage means its the switch, especially if its a auto down or up switch.

Most cars these days have this designed into the window system. It's a safety issue and I'm afraid there may nothing you can do. If there is more window track below the bottom of the glass, look for stops bolted or riveted in the track. If so, you may be able to move them down. However, this is dependent upon the drive mechanism, which may also limit window travel.

Check the master window control panel on the driver's door. There is probably a lockout switch. It may have a window outline on one end and the same outline with an "X" over it on the other. Press the outline without the "X" and all your windows should work again. As silly as that sounds, a lot of people hit that switch without knowing it. Also, if that switch(lockout) is faulty, none of the windows will work. That happens A LOT!!

2005 GMC Envoy | Answered on Jun 20, 2019


The service and repair manual with diagram will provide step by step help to locate and fix the problem on your own easily and you will get the manual from the given link Home Toolsnyou https://toolsnyou.com/

2002 GMC Envoy | Answered on Jun 11, 2019


Below are some diagrams for you. If you have the XL model there it will be different for the rear passenger compartment fuse panel which I did not include. I did include if you had a 6 or 8 cylinder engine for the under the hood fuse panel because there is a difference. This should be in your owners manual if you have one. If you do not and would like a copy, you can email me at csautomotivecars@att.net with your make, model and year and I will be happy to email you a copy. I hope this helps and good luck.


clifford224_279.jpg
clifford224_280.jpg
clifford224_1043.gif
clifford224_281.jpg
clifford224_282.jpg
clifford224_283.jpg

clifford224_284.jpg
clifford224_285.jpg
clifford224_286.jpg
clifford224_287.jpg
clifford224_288.jpg

clifford224_289.jpg
clifford224_290.jpg
clifford224_291.jpg
clifford224_292.jpg
clifford224_293.jpg
clifford224_294.jpg

2004 GMC Envoy | Answered on Jun 10, 2019


Your drive train may be in limp mode, which indicates something seriously wrong with it (engine or transmission). Check for trouble codes with a code reader.

GMC Envoy Cars &... | Answered on May 26, 2019


check connectors fuses and relays ----also check the connections ribbon connections and unit under rear seat drivers side --lift seat like your going to fold down

2002 GMC Envoy | Answered on May 09, 2019


yes pulley free wheels--- when clutch is engaged [turn on ]then compressor is turning as well

2004 GMC Envoy | Answered on May 08, 2019

Not finding what you are looking for?

-3,825 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

2004 GMC Envoy
2004 GMC Envoy

2,173 Questions

2002 GMC Envoy
2002 GMC Envoy

1,364 Questions

2003 GMC Envoy
2003 GMC Envoy

1,326 Questions

2006 GMC Envoy
2006 GMC Envoy

569 Questions

2005 GMC Envoy
2005 GMC Envoy

521 Questions

Top GMC Experts

Marvin
Marvin

Level 3 Expert

85161 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

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

Answer questions

Manuals & User Guides

View Most Popular

GMC Cars & Trucks

  • Forum

View Most Popular

  • GMC Cars & Trucks
Loading...