95 K2500 won't engage 4WD

[studeclunker]

I did a search first, honest I did! Thought I had asked this question here before.

Anyway, we have a '95 K2500 with tons of mileage on it. It won't shift into 4WD anymore. I can put it in and it appears to be in, but won't engage the front axle. What is going on?

Truck: 1995 K2500 (gas) 350 automatic.
problem: won't engage front axle in 4WD.

Any ideas????

[dieseldawg142]

most likely your axle actuator, or the 4wd indicator switch on the transfer case,
i just replaced both to go wit my newly rebuilt t-case.

[b454rat]

x2 on the actuator.....

[studeclunker]

Originally Posted by dieseldawg142

most likely your axle actuator, or the 4wd indicator switch on the transfer case,
i just replaced both to go wit my newly rebuilt t-case.

Thank you both! What do the Actuator and indicator switch look like? On the left side, I can see a small circuit board where everything plugs into the tranny. Is that what you're talking about? Or do I need to look under the right side too?

Looked on the 'Tube and found a video! Very cool. Well looks to be easy enough to do. It's just a matter of getting under the truck. Looks simple enough that even an ignoramus like me can do it!

https://www.youtube.com/watch?v=dv6pUKKOAqI

[pjmoreland]

4WD quit engaging on my '89 K1500 recently. Replacing the actuator solved the problem for me. I got part number 2FWDA1 from O'Reilly. It screws into the top center of the front axle housing. It took about 10 minutes to replace it.

https://www.oreillyauto.com/detail/c...or/mpi0/2fwda1