Having problems with your 2002 GMC Envoy ?

When the vehicle is cold, the 4WD indicator light will come on at start up and stay on until the vehicle warms up. This results in not being able to put it into 4WD if parked in 2WD or not being able to put it into 2WD if parked in 4WD. Once warmed up the light goes out and it works just fine.

Posted / edited by AnonymousUser on : 22-01-2018

Answers :

There are bulletins on this the diff actuator could be bad or the switch on the transfer case is sticking
Repair Help & Product Troubleshooting for 2002 GMC Envoy

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

When the vehicle is cold, the 4WD indicator light will come on at start up and stay on until the vehicle warms up. This results in not being able to put it into 4WD if parked in 2WD or not being able to put it into 2WD if parked in 4WD. Once warmed up the light goes out and it works just fine.


There are bulletins on this the diff actuator could be bad or the switch on the transfer case is sticking ... 2002 GMC Envoy

1996 pajero 4WD transmission making loud noises intermitently. Front wheel indicator lights flash on dash during and stay flashing after noise has stopped. Have put into 4WD mode and back to 2WD but indicator lights continue flashing. Vehicle also using oil - blows smoke when accelerating only but most likely a separate issue. Mechanic has suggested valve stems passing oil for latter issue.


... 1993 Mitsubishi Montero

My 1998 Nissan frontier never goes into overdrive unless it is in park. I drive a mountain hill everyday and need to be able to disengage the overdrive. When I put it in park with the overdrive button out the light come on the dash saying overdrive off but once you drop it into any gear light goes out and it stays in over drive even tho the button on shifter is still out. 2wd 4cyl model


... 1998 Nissan Frontier

I have a 2000 yukon xl, 4wd won't engage, rebuilt transmission and transfer case. the vehicle is on hoist, put in drive and engage 4wd, cannot turn front drive shaft by hand, seems in gear, new accuator on dront drive, can turn wheels by hand freely. not locking inr 4wd. Switchon dash, light stays on in 2wd position , but blinks when in other 3 positions


... Cars & Trucks

When in 2wd my 4wd light comes on after truck is moving when i slow down it is either the front or rear grinding and jumps in when i slow down and stop, when i put it in 4wd it will go in 4wd, when i take it out of 4wd it comes out and the light goes out then i start driveing the 4wd light comes back on when in 2wd, i am not sure why yet, the truck has got a new actuator about 10000km ago so i don,t think it is that, i just put a new transfer case in it about 2000 km ago that had been sitting fo


You maybe have a bad switch and it's activating the actuator when it's not supposed to. Try unplugging the actuator by the front diff. See if that makes a difference. ... 2001 Chevrolet Silverado 1500

Chev Blazer Saw your response on 4wd today. I have a '93 blazer. Occasionally (usually after parking and putting in reverse) the 4wd kicks out and i hear a higher pitch grinding noise as if something is trying to mesh. Vehicle doesn't move at all until I click back in to 2wd. Doesn't happen very often but very annoying when it does. Happens occasional in drive also. Any suggestions??


Sounds like your transfer is going bad... get rid of it quick or it's going to cost you a lot of headaches and money\015\012good-luck ray ... 1993 Chevrolet S-10 Blazer

2001 MITSUBISHI MONTERO XLS...4wd drive light is blinking and the anti-lock light comes on and it is in 2wd. This occurs initially when shifting from park into drive or sometimes, when slowing to a complete stop when vehicle is cold.


... 2001 Mitsubishi Montero Sport 4WD

I have a 1994 XLT Ford Explorer, was running fine with no transmission problems. Parked vehicle during snow storm about two days later I got into the vehicle to move it again, put the vehicle into reverse, with the tires spinning I engaged the 4x4, heard it engage however everything stopped. The dummy lights were lit on the dash showing the 4x4 was engaged but the vehicle will no longer move. When you put the vehicle into park in makes a grinding noise now. Dummy lights went off for 4x4 howe


That don't sound good. If you shut the engine off and restart it, is the grinding noise still there? If you engaged it with wheels spinning there's a good possibility the you broke something inside trans or transfer. If you did that with engine idlin ... Ford Explorer

I have a 2003 Pontiac Grand Am Track off light and ABS light and Sevice Vehicle Soon light stays on all the time. Sometimes the emerge light comes on.(i, P light). For the Service Vehicle light, I unscewed the fuel cap and put it back on but the service light still comes on. I even lubed the O-ring on the fuel cap. But sometimes the parking brakes comes on. Pulled on the emerge brake and put it back to norm position, still brake light stays on. Stll all thre lights stays on. Car seems


The traction control system works off of the abs system so there is a code in the abs module that needs to be pulled so you know were to start to check the system out.the service engine light is a different system all together and there is a code in ... Pontiac Grand Am

My 98 chevrolet blazer with pushbutton electronic transfer case will not go from 2wd Hi to 4wd hi it makes a awful grinding noise and the lights just flash. Then, it goes into 4wd low! I have to put it into neutral to get it back into 2wd Hi then. (which is normal to get back into 2wd hi from 4wd low)but all it does is make a loud grinding noise anytime I try to put it into 4wd Hi!


Check out battery voltage.  ... Chevrolet Blazer

Service 4wd I get a service 4wd, comes and goes ,sometimes the sw. lights dont work. also it went into 4wlow by itself twice this stoped went to chevy got code c0327 they said it needed a encoder motor and sw cluster. that was 5 months ago yesterday I put it into 4wd hi it went in then I got service 4wd message again . Switch lights went out its back into 2wd not and sw lights on again . Could this only be the sw or the sensor? I have a 2003 Chevrolet Silverado 1500 half ton. It will be in 2wd


... 2003 Chevrolet Silverado 1500

I have a 1998 chevy k2500 pickup with a 5.7L V8. The problem i am having is with the 4wd. it has a 3 button electronic shift selector. when pressing the 4wd low button it will shift the motor and the front diff actuator into 4 low. if u put it into 2wd it will disengage but the light for 2wd does not come on. if u put it in 4 high it will not shift at all but the lights for 4 low and 4 high illluminate. if u keep doing it for a little bit shifting through all of them fuse #2 in the ip fuse block


First, you do not need 4 low unless you're stuck out in the bush somewhere. Secondly, when you shift from 2 high to 4 high, it goes in immediately. To access 4 low, the tranny shifter must first be put into neutral, wait five seconds, then shift into ... 1998 Chevrolet K2500

My 04 TrailBlazer LT popped up the Service 4WD light. I put it in 4WD this morning and had no problems. I went to lunch and put it on and it took a few minutes to switch and then the light came on. It finally did switch and it seems to be working. The light only comes on when trying to switch 4WD. I just bought this vehicle 2 weeks ago????


MIne will do that only when I'm switching my 4WD to 4low or 4hi, or back to 2hi AND the TB has good traction, ie pavement or rock OR the tires are cranked to one direction. After my wheels are straight, I just turn the engine off, and turn it back o ... 2004 Chevrolet TrailBlazer

I put my 2004 ford ranger in 4wd and it made a horrible grinding noise when i moved forward and the truck moved very slowly. i stopped, put the trans back to neutral and shifted bacck to 2wd but the truck stayed in 4wd. after about a minute, the truck slammed back into 2wd and im afraid to go back to 4wd for fear i wont be able to go back to 2wd again . what should i do?


Have your transfer box fixed,,,its busted? ... Ford Ranger

1999 siverado 4wd problem..started having problems coming out of 4wd, pushed 2wd dash indicator said 2wd but not in any gear. put in park, got grinding gear sound shut off engine restarted 2wd active now. this happend 3 times over about a month. now it wont even go into 4wd I hear transfer case shift into 4wd low but not in 4wd high. boy why couldnt they leave the manual hubs and shift lever alone?? lock hubs before you need 4wd and just use shift lever in cab.hehe


Sounds like it might be an encoder moter, but the best thing you can do is take it to a good transmission shop so they can hook up their reader and find out for sure ... 1999 Chevrolet Silverado 1500

The gear shift on my 1998 Lincoln Navigator is difficult to move out of park. It started about a month ago, when I tried to back out of my parking spot at home. Tonight, the vehicle died on me at a stop light, so I put it in park to restart the engine and when I tried to put it into drive, I could not get the shifter out of park. I kept forcing it, and it finally came loose allowing me to put it into drive.


It can be either the shift cable or the Automatic parking brake release.\015\012With your vehicle stalling it sounds like the parking brake release is leaking vacuum and causing stalling.\015\012\015\012You can check with Autozone o ... 2004 Lincoln Navigator

I have a 2004 Ford F250 Superduty V8 Turbo Deisel. I attempted to put it into 4WD (due to snow) and nothing happened and no indicator light came on. I followed what I usually do by turning the control knob from 2WD to 4WD High while the truck is in motion and I saw no light come on and it didnt even feel that the 4WD was engaged. I'm assuming that a burnt light bulb would have nothing to do with the 4WD not engaging correct? What could be the problem?


Hello nasenterpris\015\012You would notice somthing if the transfer case engaged, even if the hubs did not. The first thing I'd do, before crawling in the snow is to stop by my mechanics or an autozone and have the OBDII\015\012scanner ho ... 2004 Ford F250

I bought this jeep with a ceased engine, put another engine in. when trying to start, there is a security light on the dash. the vehicle runs for about 5 secs then dies. tried starting repeatidly, same problem. disconnected negative terminal, reconnected and light gone, able to start vehicle. turn vehicle of, and security light is on when next time to start. how do i deactivate this as i do not have any keyheads for central locking. i tried locking and unlocking vehicle by key and still no joy.


This is a built in anti theft program in the computer system, called the SKIS module. unfortunately, the only way to rectify this problem is to tow the vehicle to the dealer, and have them unlock the module. call your local dealer and ask them what t ... 1997 Jeep Cherokee

Service 4wd I get a service 4wd, comes and goes ,sometimes the sw. lights dont work. also it went into 4wlow by itself twice this stoped went to chevy got code c0327 they said it needed a encoder motor and sw cluster. that was 5 months ago yesterday I put it into 4wd hi it went in then I got service 4wd message again . Switch lights went out its back into 2wd not and sw lights on again . Could this only be the sw or the sensor?


My 4WD shifts on it's own, and back out when i turn the engine on and off. I thinks it's a sensor but not sure. ... 2005 Chevrolet Silverado 1500HD

I have a 2004 Ford F250 Superduty V8 Turbo Deisel. I attempted to put it into 4WD (due to snow) and nothing happened and no indicator light came on. I followed what I usually do by turning the control knob from 2WD to 4WD High while the truck is in motion and I saw no light come on and it didnt even feel that the 4WD was engaged. I'm assuming that a burnt light bulb would have nothing to do with the 4WD not engaging correct? What could be the problem?


... 2004 Ford F250

I drove to work this morning, 18 miles from home. When I was parking backwards, I saw the battery light on the dashboard went on, then the ABS light went on too. I was able to park properly then switched off the vehicle. I switched back on but it won't start. After about 30 minutes or more, I went back to the vehicle and it started this time. Le Scwab had just replaced the rear brakes together with the caliphers, and done something because they said it is already metal to metal. What is th


You need to go straight to the shop, the battery light is on because your alternator is not charging the truck will only run until battery drains again, the brakes have nothing to do with it,hope the shop is not far away the battery will build itself ... 1996 Ford Explorer

My 06 Suzuki Reno threw me out of drive this morning. I was pulling in a parking lot and the car would not accelerate. I looked down and the gear shift showed D but the light on the dash showed N; then I threw the car into park and then tried to put it in drive again and the light on the dash started blinking with all the symbols lit at the same time. After another minute I was able to put it in drive and move again. I am just wondering what happened?


Sensor could be off adjustment or linkage has moved slightly. Check tranny fluid when hot, could be down a bit. ... 2006 Suzuki Reno

I have an 06 h3 hummer and the indicator light under the d in PRND123 goes on and off while driving and if the light is not on when vehicle is put into park the vehicle will not come out of park. what could be wrong


Just adjustment on the shift ... 2006 Hummer H3

4 WD High and 4WD Low lights blink at the same time (6 times, then off; then 6 times, then off, etc.). The problem seems to begin when I run in reverse, then put it in drive. It appears that the transmission is stuck, it grinds some and then "pops" loose. The vehicle will go forward, but I can't tell if it is in 4 WD drive after that. Often times the 4WD High light won't come when I turn the switch, even if it is driven for a while. Turning the vehicle off and then on again seems to cure the


... 1998 Ford Explorer

4wd shifter does not work and I think it is stuck in 4wd part time. It is a 6cylinder laredo that goes into 2wd manually. The part time 4wd light is not on but it is in 4WD. The shifter will not go past 4wd from low unless I push the handle down to go into 2wd put only the handle is working the transmission stays in 4wd part time


... 1999 Jeep Grand Cherokee
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 3.3698 seconds