Question about 2004 GMC Envoy
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.
Posted on Aug 27, 2010
First step would be to use a scan tool and command the solenoids
then the second things, would be jumping the solenoid, but this may be tougher than you think without special jumper tools unless of course you do not care about destroying the connectors and/or wires
however, mechanical is easy...
disconnect the solenoid connectors
disconnect solenoid from the rods
pull rods and your gate will open
if this fails then your concern is in the latch assembly itself... which I do about 6 a year at our independent shop.... what a pain!
Posted on Aug 25, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Aug 06, 2018 | GMC Cars & Trucks
Mar 04, 2018 | 2005 GMC Envoy
Sep 13, 2015 | 2004 GMC Envoy XUV
Oct 08, 2014 | GMC Envoy Cars & Trucks
Oct 11, 2010 | 2004 GMC Envoy
Apr 06, 2010 | 2004 GMC Envoy
Jan 19, 2010 | 2004 GMC Envoy
Feb 24, 2009 | 2004 GMC Envoy
Jun 30, 2008 | 2004 GMC Envoy
Feb 17, 2019 | 2004 GMC Envoy
10,940 people viewed this question
Usually answered in minutes!