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Front axle not engaging for the four wheel drive. It's on my 1992 k2500 new actuator and no light on floor shifter and no power at the fuse any p would be appreciated

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  • 271 Answers

The fuse that you would need to change would be underneath the driver side steer wheel it is fuse number 2161!

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Posted on Dec 05, 2012


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Posted on Jan 02, 2017

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SOURCE: 4x4 wont engage

There is a switch that has twwo wires going to it, it's located just above the motor on your transfer case,on the drivers side, one plug goes to the motor and the other goes to this switch, it's the motor that shifts it into low and high range, I'm not sure what the switch is called but it tells the front end when to lock and unlock.
Hope it helps

Posted on Mar 05, 2009

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SOURCE: I have a 1990 K1500 4X4 Chevy pickup that wont

I had the same problem on my 90 K1500, it was the 4 wheel drive actuator unit itself. Bout it at the local parts store for 30 bucks and installed it in 10 minutes or less - and vavoom! 4 X 4 back in business.

Posted on Sep 28, 2009

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SOURCE: 4 wheel drive will not engage front axle.actuator

On the front axle of your Suburban there is a thermally (an internal heater) activated devise that pushes on a lever to engage the axle. There is a technical service bulletin ( #76-43-01A) on this problem but the repair isn't cheap.It involves installing an updated devise with a DC motor from General Motors which also requires a new wire harness.
I have found that installing an aftermarket one (available at your local autoparts store) that just bolts on will work just as well.
It just threads in to a housing and is very easy to replace.

Posted on Nov 02, 2009

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SOURCE: I have a 2001 Chevy 2500 4X4. Four wheel drive not

Sounds like the chain in the transfer case has broke or the linkage is out of adjustment

Posted on Dec 08, 2009

  • 64 Answers

SOURCE: Four wheel drive wont engage. Tranfer case is

Sounds like you either have a vaccum leak or your 4 wheel drive actuator is not working to engage the front differential.On my 98 ram there is a black and red plastic lines that are used for the vaccum lines. They are underneath and go from the transfer case to the front axle, check to see if one or both might be cracked or broke completely.If the lines are good then it could be your actuator on the front axle. A new one is about $93 at advance auto parts and not very hard to replace

Posted on Dec 15, 2009

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1 Answer

The 4wd will not engage.

Most likely the front axle actuator,unhook it ,unscrew it from the axle ,then engage the 4x4 ,see if the actuator extends,if not it will need replaced.

Jan 31, 2012 | 1995 Chevrolet C/K 2500

1 Answer


Check your actuator on front axle the vacuum hose comes off.

Dec 25, 2011 | 1997 Chevrolet K2500

1 Answer

When shifting into four wheel drive the fuse blows

There are 2 switches (one on top of the transfer case left side above shifter) this then sends power to the electric actuator to engage the front axle. Quite often the actuator is internally shorted causing fuse to blow. I'm sorry I don't have a schematic in front of me. The second switch is on the front axle and will illuminate the 4wd light when engaged. It could be shorted but won't inhibit 4wd operation (its a separate circuit). Remove the connector at the front axle actuator and jumper it directly to battery (using a fused jumper). if it operates, and fuse doesn't blow, then you have a wire chaffed to ground. Most often its near the front axle harness that gets rubbed thru. If the fused jumper blows then obviously the actuator is no good. I hope this helps some.

Jan 26, 2011 | 1991 GMC Sierra

3 Answers

The four wheel drive on my 1996 Chevrolet C/K 1500 Z71 doesn't seem to be working. I can shift the floor shifter to 4H or 4L and no indicator light comes on and it is only in 2wd. What could be the issue?

Check the 4WD fuse and the illumination fuse in the I/P fuse block. Also check the Transfer Case Switch and the Front Axle Actuator for a fault. I would say that the Front Axle Actuator is the most common failure. I think there is even an updated actuator asy available. Check with you local chevy dealer for price and availability.

Feb 06, 2010 | 1996 Chevrolet K1500

3 Answers

The four wheel drive quit working while driving in 4 wheel high on a back road. The truck is a 1991 Chevy Silverado CK 2500. The front axle drive light on the floor shifter does not light up when...

Does the vehicle still have 4 wheel drive... or is it just the light that isn't working. I don't mean to insult you, I'm just asking if that's the case. You may just have a burnt out light. Most of these lever shift transfer cases are pretty straight forward, they either work, or they're so busted up inside that they make terrible noise.

Nov 10, 2009 | 1991 Chevrolet K2500

1 Answer

My four wheel drive doesnt work in my 87 s10 blazer , like when i put it in park to put it in gear the shifter on the floor goes into gear but the four wheel drive doesnt turn on ? is there any fuses or...

sounds like either a fuse or the do u have locking hubs that need to be engaged also when using 4 wheel drive there is actually only 2 wheels turning usually passenger front and driver back sometimes u also have to drive backwards to engage and also disengage 4 wheel drive finally it may be a transfer case problem check drive shafts and u joints make sure they are engaged

Oct 23, 2009 | 1987 Chevrolet S-10 Pickup

2 Answers

1995 TAHO 4X4

There is a solenoid (popper thingy) that engages your four wheel drive. It is bad, it costs around eighty bucks, but is easy to fix. Go underneath your truck and look at your transfer case, it should have a wire or two going to it, that wire connects to the solenoid. Remove the solenoid, put the new one in and your light, and your four wheel drive will work again. This is a common problem with that type of four wheel drive system in the year ranges of 88-97.

Jul 16, 2009 | 1995 Chevrolet Tahoe

1 Answer

Front axle stuck engaged

w9fro..In1995, and other model years, the actuator used to engage the transfer case into four wheel drive is oil filled with a heating element.
When you select four wheel drive the element heats up, the oil expands and engages the transfer case. Unfortunately if the actuator fails, the truck remains in four wheel drive. GM has an improved actuator so the problem does not repeat.
As always, check the basics, power, grounds and switch at floor select before replacing the actuator.
Also, if the truck is truly stuck in four wheel drive, you can tell by turning the truck in a tight circle. If the front end wants to "bunny hop" it is definitely engaged.
Best of luck, let me know.

Feb 10, 2009 | 1995 Chevrolet K1500

2 Answers

4x4 wont engage

First thing to make sure of is to check for a blown fuse. The fuse location is marked 4WD and it should be a 25 amp fuse. If the fuse is bad, the lights on the 4wd console wont light up. If the lights do light up, then you can move to the transfer case. On top of the transfer case, toward the rear of the truck is a switch that has a 2 wire connector. That switch sends power to the front axle actuator when you try to enagage 4wd inside the truck. That could be bad. The switch is threaded into the transfer case and is still available through GM. If the switch is ok and the wiring that attaches to it is ok, then you can move up to the axle. Threaded into the front axle is the front axle actuator. These actuators are prone to failure in older trucks and is very prone to cold weather failure. You can test the actuator by removing it and then WITHOUT the truck running, put the truck into 4wd and then turn the key to the hot position. The plunger inside the actuator will extended outwards. More than likely it will be one of those 3 things. If it still wont engage, you may have a short in one of the wiring harnesses associated with the 4wd system. Also, you may have a damaged transfer case. To check the transfer case, put the truck in 4wd without it running and then crawl underneath and see if you can turn the front shaft by hand. If's good. If you can....then the shifter forks inside the case are worn or damaged. I hope this helps.....start small and work your way up!

Jan 30, 2009 | 1989 GMC K2500

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