Question about 2004 GMC Envoy

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Service 4WD light just went on 2004 GMC Envoy. AWD, 4H, and 4L do not work. Please advise

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

mick-40
  • 94 Answers

SOURCE: what position must the 4wd

Hello marcampbell2, your escudo should be in 4H for highway use,the N position is used for towing purposes.take care and drive safe

Posted on Nov 14, 2008

  • 2 Answers

SOURCE: Changing a headlight on a 2004 GMC Envoy

If it's the same as a Trailblazer you have to first remove the "bowtie" from the front between the two light bezels. Gentle pull forward and the pressure clips will release. Don't be shy. There are no screws. Than with the light bezels exposed you will see a metal clip that has to be pulled back to release the bezel and it will swing forward to allow you access to the bulb.

Posted on Dec 21, 2008

  • 6982 Answers

SOURCE: 4 wheel drive not working

First, check the transfer case and make sure it's full.
If you have the electric shift system in your vehicle, a servo motor could be failing, or the switch may be going bad. Even the switches on these systems are expensive so good, accurate testing must be done to verify failure of anything before you start replacing stuff. If it's not electric, check linkage to transfer case... something may be loose and sliding out of adjustment. Todays systems are just too complex to give accurate answers without hands-on testing. Many times several different items can give similar symptoms. That is why most shops say "bring it in and we will look at it".
good luck

Posted on Dec 28, 2008

  • 250 Answers

SOURCE: battery removal on a 2004 GMC Envoy

The battery is on the right side behind the fuse box. You need a metric set to undo the 3 screws. Theres one that attaches to the body, one to the bar that goes along the top, and theres one on the left side below the vacuum hose and air induction. After you've taken out those three, you should lift the whole thing out(battery and shroud) together. It's hard to take the shroud off before you lift the battery out. After that, you have to pry the shoud off the battery. The two terminals in the back make it hard. Then just go to any auto parts store and they'll give you a new one. 

Posted on Jan 28, 2009

  • 366 Answers

SOURCE: My 4 wheel drive push buttons flash in 4h and 4l and auto 4wd.

common problem with these is corrosion at electrical connector in control box located on passenger side behind kick panel

Posted on Mar 01, 2009

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2 Answers

04' GMC Sierra quadrasteer, trec fuse 30a blows when trying to engage 4wd. I replace fuse, start truck and 4wd auto is lit up but if I press 2h, 4h, or 4 low it blows. What should I do or look for?


Wild guess here, had a similar problem on my 2000 4x4 blazer, has an electric motor on transfure case to swith it into 2h, 4h, and 4l, would blow the fuse every time when switching, did is to replace the motor. Just confirm your fuse that is blowing feeds that.

Oct 21, 2016 | 2004 GMC Sierra

1 Answer

4L and 4H lights flashes when you try to engage either of them in 05 Isuzu Rodeo


this is a part time 4wd, not AWD.
and as such must not be run on dry ice free pavement.
so post if car is on said pavement.
test 4wD in DIRT, does it work now, or not?
if you keep doing it on dry pavement this happens.
see here
http://www.rubicon-trail.com/4WD101/driveline-bind.html

read the wiki on all system. and see what you can do and can not.

its not AWD, and has no CENTER differentiable gears.

Apr 18, 2014 | 2004 Isuzu Rodeo

1 Answer

I have a Suzuki 2L diesel 2004 Grand Vitara and recently the 4x4 does not disengage even though i have put the lever back down to 2. Eventually after a few hundred metres it disengages back to 2 wheel...


hello and greetings. you did not say what driveline options
were purchase when car was new. so, can not answer.
but if car is PT 4wd, I can. if not get it fixed, by any 4wd shop.

the car is full time 4wd or AWD ?
PT:
the Part time 4wd must not be driving on dry pavement.
so drive to dirt or grass or ice and then shift back to 2wd

there is a TSB from Suzuki on wind up.

exceptions?
sure , the 2004 options statement here. and the rules for PT 4wd.
http://www.fixkick.com/part-time-test.html

Suzuki Grand Vitara/Escudo -full-time 4WD using limited-slip center differential, off-road 4WD with selectable center differential lock and low range transfer case 4 mode (4h, 4h lock, 4l n), traction control and electronic stability control
Suzuki offered as an option AWD for Grand Vitara's in 2004 (XL7 too) Some Suzuki AWD you can not use lock on dry pavement, so read the operators guide carefully.

suzuki sells the operators guide if lost,
$4 day pass
$25 for full pdf.

https://suzukipitstopplus.com/Products/1042-2004-grand-vitara-owners-manual.aspx


Mar 01, 2014 | Suzuki Cars & Trucks

1 Answer

Front tire wearing faster than rear


Get the 4WD fixed and rotate, rotate, rotate

Dec 26, 2013 | 2003 GMC Envoy

1 Answer

2002 envoy code co550


you need to replace the tccm and get it programmed.


2-04-21-006E: Inoperative 4WD/AWD Lamps, Inoperative 4WD/AWD System, DTC C0550 Set No Communication with TCCM (Reprogram Transfer Case Control Module) - (Jul 20, 2006)
999999995.gif Subject: Inoperative 4WD/AWD Lamps, Inoperative 4WD/AWD System, DTC C0550 Set, No Communication with TCCM (Reprogram Transfer Case Control Module) Models: 2004 Buick Rainier 2002-2004 Chevrolet TrailBlazer, TrailBlazer EXT 2003-2004 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2002-2004 GMC Envoy, Envoy XL 2003-2004 GMC Sierra, Yukon, Yukon XL 2004 GMC Envoy XUV 2002-2004 Oldsmobile Bravada with Electronic Shift or Active Transfer Case (RPOs NP1, NP4 or NP8)

This bulletin is being revised to add Subject information and change the labor operation. This bulletin cancels and supersedes Bulletin Number 03-04-21-006. Please discard Corporate Bulletin Numbers 02-04-21-006D and 03-04-21-006 (Section 04 -- Driveline/Axle).
ConditionSome customers may comment that the 4WD/AWD indicator lights on the selector switch do not work, or the 4WD/AWD system may be inoperative and/or the service 4WD light is illuminated. The condition is typically intermittent and always occurs at key-up. Upon investigation, the technician may find DTC C0550 set.
CauseThe Transfer Case Control Module (TCCM) has not received the wake-up call during key-up and has remained in the "sleep mode".
When the TCCM is in the "sleep mode", it will not communicate with the class II bus or the Tech 2®.
Correction
  1. Try to communicate with the TCCM. If no communication, go to step 2. If communication is possible, go to step 5.
  2. Remove the underhood (ATCM or TREC) TCCM fuse.
  3. Wait 30 seconds.
  4. Reinstall the fuse. The module should "wake up" and communicate with the Tech 2®.
  5. Check for codes in the TCCM. If a C0550 is found current or in history with or without other codes, replace the module and go to step 6.
  6. Reprogram the TCCM with the latest TIS software using normal SPS procedures.
  7. Verify operation and that no codes are present.
Important: For the 2002 model year, the TCCM must be replaced and reprogrammed.
Warranty Information

Jul 29, 2011 | 2002 GMC Envoy

1 Answer

I have a 2004 GMC Envoy XL and the high range 4x4 mode will not engage. The AWD system works just fine as well as the 4x4 mode in low gear. What is causing this?


Is the Service 4WD light coming on? Do the light on the 4x4 selector switch indicate the proper selection and are on steady after a few seconds? If there is no Service 4WD light on and the selector switch light are correct, the only place for the problem to be is the Transfer Case. Has the Transfer Case fluid been changed at 50K mile intervals? This is very important.

Feb 01, 2011 | 2004 GMC Envoy

1 Answer

99 GMC Sierra 4X4 kicks out


Check/change transfer case fluid and check the wire connection to it.

Mar 25, 2017 | 1999 GMC Sierra

2 Answers

GMC Sierra "service 4WD message" Need Help!


If it will run in 2wd or 4H, you should be fine. May be just a solenoid in the transmission.

Apr 12, 2017 | 2004 GMC Sierra

1 Answer

2003 gmc envoy 4x4 not working


My 2005 Envoy 4WD is not working. Switc is currently on 2HI, but light is showing AWD. What is the problem???

Dec 20, 2008 | 2003 GMC Envoy

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