2004 GMC Envoy - Answered Questions & Fixed issues

All vehicle info is on the internet You just Google your questions & your codes Type: OBD POO16 Obviously you need a repair shop to check for codes & use them to find a problem

Question edited for clarity. Question moved to model category https://www.google.com/search?q=2004+GMC+Envoy.+The+tailgate+will+not+open ..

How to Deactivate OnStar: 12 Steps (with Pictures)

wikiHow https://www.wikihow.com > ... > Car Electronics Jun 6, 2023 - The only way to completely eliminate OnStar is to physically disconnect the module from your vehicle. Other than the OnStar system and its ...

How can i disconnect my onstar gps system on 2004 gmc ...

JustAnswer https://www.justanswer.com > GM Repair Jan 28, 2011 - Hi. You can disable the On Star system by pulling the fuse labeled INFO which is a 15 amp fuse located in the under hood fuse box. 1 answer · Top answer: O.k. The On star control unit (VCIM) is the only unit that receives the GPS

After the MIL is turned off or the battery was disconnected for some time, all monitors are set to incomplete. However with several short trips with engine getting at least to hot enough for thermostat to open, (I believe 8 is the magic number of trips) most monitors are set, you may be able to pass the test with only one incomplete only.

The knocking is probably the blend door actuators. They have been detached or become stuck. They operate the doors that direct the flow of air. https://www.google.com/search?q=2004+gmc+envoy+blend+door+actuator+location ..

u gonna need an electronic scan tool designed for your cars model to reset the oil change light....

this is the exploded view of tailgate https://www.gmpartscenter.net/v-2004-gmc-envoy-xuv--sle--4-2l-l6-gas/body--tailgate this is removal and working on an xuv https://www.youtube.com/watch?v=MLQLAD8xOPk

Do you live in a dusty area? My sister lives in dusty New Mexico and had a malfunctioning XUV tailgate. My reasoning was that something must tell the tailgate not to drop down if the glass is up, and if it can't tell, then it will only open sideways.
So we removed the trim panel, and the tailgate was indeed full of dust. By reaching my arm in, I found two plastic optical sensors which tell the gate whether the glass is up or down; both were coated with dust. After cleaning these the tailgate was back to its normal operation. The two sensors are flat, round - about the size of a nickel or dime...I couldn't see them, just found them by guessing that they must be there. Hope this helps!

Got a new vehicle Joe. Just what you need with the gas prices as high as they are!! Did you get rid of the 1998 Ford Contour? Foot on the brake and go though the full shift range and then back to park. That should release the ignition lock. It appears to be a known issue. Check out the videos https://www.google.com/search?q=get+the+key+out+of+the+ignition+switch+on+a+2004+GMC+Envoy+4.2 ..

When you change batteries, always maintain power using jump leads, a battery charger/maintainer or a couple of lengths of wire. Is the security light flashing? https://www.google.com/search?q=2004+gmc+envoy+security+reset ..

no manual overide --need to take apart and slide glass forward or repair

Page 184 of the manual? I don't see Days. All manuals are available, unless it is an aftermarket Crutchfield or upgraded unit. https://cdn.dealereprocess.org/cdn/servicemanuals/gmc/2004-envoy.pdf

Upgrading the Stereo System in Your 2002-2009 GMC Envoy

https://www.crutchfield.ca > ... > Research Garage

Hours 7 days a week ... 2002 • 2003 • 2004 • 2005 • 2006 • 2007 • 2008 • 2009 ... Replacing the factory stereo system is a great way to make your Envoy (or ... You can replace the factory radio with a variety of single-DIN or double-DIN ... them in your own environment - that's why we offer a 60-day money-back guarantee. ..

What was the actual code number? Are you using quality parts? Did you check electrical circuits for wiring connector? Was the trigger end of the sensor damaged in any way?

It definitely sounds like you have a bad shifter cable. Not a very expensive part, but can be a pain to get changed.

When you place the wheel in a hard lock position ,the power steering pump relies on the pressure by-pass valve to operate instead of the valves in the steering box to open and allow the pressure to by-pass back to the reservoir.. When you hit hard lock and you hear the motor load up just ease on the turn and the pump will operate as designed. The turn will still be the same -just that the pump is not under full load . Breaking the shaft is a sign of excessive load and a misaligned pulley so check that the belt is directly in line and the pump is square to the belt line. For more help click the link below https://carrepairworld.blogspot.com/2021/05/causes-of-pump-shaft-broken.html This will help.Thanks

the alternator is notorious for wining on those envoys and trailblazers and check powersteering pump if low will do same [ leak usually from crimp line on fender well ]

jack it up and run the wheel left and right till it clears out the air

Pump replacement is fairly involved, but the issue is rarely the pump, as it is pretty indestructable. If you have low pressure, usually some clearances are too loose, somewhere. There is also sending unit issues, so measure your pressure with an external "known good" gauge.

Probably blown, replace it, they're cheap enough.

Look on the SERVICE PARTS IDENTIFICATION Sticker in the glovebox for code UQA. This code = Bose Premium Sound System. The amplifier should be on the right behind the glovebox.