Why is my GMC 4 wheel drive not working?

Possible bad transfer case control module or the actuator on the transfer case or front differential not working. 2011 GMC trucks four wheel drive stopped working electric automatic lock in four wheel drive service light came on spend the dial does not acknowledge full drive I have a 1993 chevy truck k2500 5.7L automatic 4×4.

Why does my Chevy 2500 not have 4 wheel drive?

Front axle is not engaging 4 wheel drive, replaced actuator and can hear it working but still no 4 wheel drive For what it’s worth my 2000 chevy 2500 wouldn’t go into 4 high .

Which is GM rear wheel drive transmission is the best?

It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced. The 4L60-E is found in nearly every GM rear-wheel-drive application, including the C/K Truck, Sonoma, Jimmy, Tahoe, Yukon, Astro, Safari, Suburban, Bravada, Firebird, Camaro and Corvette

Why does my Chevy truck not move in reverse?

So transmission is working properly and shifts through gears and goes in reverse, all with Tranfer Case in 4WD Auto. With transfer case in 2WD the truck will not engage and will not move, and with 2 failures in 2WD there is clearly something wrong. I really need help in identifying the problem.

Why does my Chevy truck not shift into 4Lo?

Also, it moves in Auto4WD and in 4Hi, but It will not shift into 4LO, It clunks 3 times about 3 seconds between like its trying to shift but will not. Still not message on dash indicating a problem. Need help please. My first thoughts are, drive shaft, rear dif, or tranny.

Why is the drive shaft on my Chevy truck not turning?

With the truck in gear, running and not moving, the drive shaft is not spinning. Also with the truck in neutral, the drive shaft will not turn. Here is the thing that’s got me puzzled.

Can a Chevy truck not drive in 2WD?

In summary, it is possible to have a condition where the truck will not engage/move in 2WD but it would in “4WD” and “Auto 4WD”. It will drive the rear wheels in “Auto 4WD”.

Tried a new switch, front axle actuator, shift motor, looked through it with my tech 2 and it says no communication…I’m gonna try a new transfer case next because it pops a little any way. On the driver side front cab mount there is a ground wire that grounds the transfer case shift motor, it gets broke easily if your off road or in the salt.

What is the GM service 4 wheel drive message?

GM has issued a service bulletin # 09-04-21-001 to address a Service 4 Wheel Drive Message condition on the vehicles listed below. In addition to the Service 4 Wheel Drive Message, you may also have a C0387 or a C0569 trouble code stored.

What is the GM 4 wheel drive Bulletin?

Why is my 4 wheel drive light not engaging?

If you don’t shift it into neutral, the 4wd light will continue to flash and won’t get into gear. Seems to be a common occurrence on these trucks. Dodge dealers recommend engaging 4-lo, then back in 2-wheel drive, then back in 4-wheel drive hi (4H). This sequence apparently resolves the problem.

Why is 4WD not working properly on GMC Envoy?

Great shape! ….only problem….Pushing the 4X4 HI button does nothing and doesnt light on dash. When pushing the low button in neutral it s … read more 2000 GMC sierra 2500 6 liter 4WD. XXXXXdash selector switch is brand new, new fluid in transfer case. I can hear it shifting between Auto, 2 hi, 4 hi, but will not engage in 4 low.

What causes a GMC Envoy to lose its Stabilitrak system?

There are many things that can cause the StabiliTrak system to lose its ability to function. It is a complex system. Wheel Speed Sensor – If one of the wheel speed sensors is out, your Envoy will no longer be able to tell if all of the wheels are turning at the same speed.

What’s the selector switch on a GMC Envoy?

XXXXXdash selector switch is brand new, new fluid in transfer case. I can hear it shifting between Auto, 2 hi, 4 hi, but will not engage in 4 low. What could be the p … read more

Why is my traction control not working on my envoy?

Traction Control Not Working – Your Envoy’s traction control system mostly uses the same sensors to determine if a wheel has broken traction. Unlike StabiliTrak, which controls lateral issues (sliding), traction control keeps the wheels from unnecessary spinning.

What happens when the 4 wheel drive comes on?

When the light is on, the truck won’t engage into 4-wheel drive. When I turn my truck off and start it again, the 4-wheel drive will work until the next time the light comes on.

What does the blinking 4 wheel drive indicator mean?

So what is that 4 wheel drive indicator blinking on your dashboard means? The purpose of the 4 wheel drive light is to indicate when you have engaged 4WD mode by selecting 4H. When the light flashes continuously for more than 30 seconds it signifies there is a problem somewhere on your drivetrain system and that 4WD has not engaged properly.

Is there a 4 wheel drive selector switch?

The selector switch lights do work when first started then go out also the service 4 wheel drive light stays on. Scan test needed on the transfer case module. Anything else is wasting time and money!

Why does my Silverado 4 wheel drive not work?

2005 Chev pickup Silverado 4×4. 5.3L. Question Here: push the button to engage four wheel drive and it don’t work. Light don’t even blink. Is this a common problem and what do i check for?

When the light is on, the truck won’t engage into 4-wheel drive. When I turn my truck off and start it again, the 4-wheel drive will work until the next time the light comes on.

What causes no 4 wheel drive or lights on?

In a lot of cases the power control to the actuator has been compromised, causing no actuator function. So that being said then you would have to be able to diagnose and trace circuits pertaining to the operation and function of the 4wd system.

Why is the front wheel not turning on my Silverado Sierra?

If you jack up one front wheel and have the 4wd engaged, that wheel won’t turn. This is due to the 2 other inputs to the diff being grounded/locked. If 4wd isn’t engaged, the wheel will turn freely and spin the driveshaft to the TC.

Why does my GMC Sierra say service 4WD?

If traction control is turned off the 4×4 seems to work even tho the Service 4WD message is showing. For such a common problem there should be specific answers, or this is just a piece of crap engineering. 39 people found this helpful. 10 people found this helpful. I’m having the same issue but it will not come out of 4×4

What should I do if my Silverado 4×4 won’t engage?

1. Engage the transfer case – which your manual lever does, and that seems to work well. 2. Lock the front hubs, which is done electrically and confirmed when your 4×4 light goes on. This part of the system is where your issue is. I am no mechanic, and don’t have the solution – others here have more hands on and will weigh in on your issue.

Why is my Silverado 4 wheel drive not working?

This morning I tried to switch to 4wd drive and realized it wasn’t engaging. The “service 4 wheel drive” message popped up and the knob to change from 2wd – 4wd light was stuck on 4wheel drive (i turn it to 2wd drive and it showed that it was in 4wd) but 4wd wasn’t working.

Who is the owner of the 2008 GMC Sierra?

2008 GMC Sierra Owner ManualM GENERAL MOTORS, GM, the GM Emblem, GMC, the GMC Truck Emblem, and the name SIERRA are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice.

Is the GMC Duramax Trans won’t shift?

Enter your ride HERE to be a part of this months Ride of the Month Challenge! Alright guys I’ve got an 04.5 LLY and after sitting for 2 or 3 days went to drive it and it clunks real hard into reverse and drive.

When to shift out of 4 wheel drive?

It’s important to remember to shift out of 4 HI as soon as road conditions improve. If road conditions frequently alternate between high- and low-traction areas, consider using the “AUTO” setting found on select GMC electronic transfer cases.

Can a GMC transfer case be shifted to four wheel drive?

Since GMC’s transfer cases are designed to be “shifted on the fly,” drivers can shift between high-range two-wheel drive and high-range four-wheel drive without bringing the vehicle to a halt.

Are there transmission problems in a 2006 GMC Sierra?

It is hitting the point that your 2006 Sierra may be having transmission problems. Below, you’ll find a ton of troubleshooting your transmission problems. The 2006 Sierra was a carryover from the 2005 model year.

Since GMC’s transfer cases are designed to be “shifted on the fly,” drivers can shift between high-range two-wheel drive and high-range four-wheel drive without bringing the vehicle to a halt.

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