question on my 92 k2500 front axel

[brandon2500]

i got a 92 k2500 when i bought it the 4x4 worked awesome now not so much...i can hear it go in from transfer case but no lights or indicators come on and it is definatly not enganging... guy at napa said it could possibly be the electronic actuator/sylenoid figured i would put out some feelers and get some thoughts on this

 

[evilunclegrimace]

Check and see if you have power from the T case switch to the front axle actuator

 

[97K1500Silverado]

The thermocouple on front axle is known to fail. Start checking there.

 

[magimerlin]

I second the thermocupler failing.... and raise you the parts (part numbers) to change it over to the newer style electronic one...

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[magimerlin]

There's a write up on here somewhere about it as well.

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[grampadirt]

I did the upgrade to the electric actuator about three years ago,still works great.The best part of the upgrade is it works quickly,you don't have to wait for the gas actuator to get warm enough to work.I used those parts as in the video Merlin posted.

 

[dans]

Well I got rid of the gm part and installed a posi lock 4x4 wire control.Later my light wouldn't come on and it was my passenger side axle popping out of the diff.See here http://www.gmt400.com/threads/help-with-4x4.39183/

 

[dans]

Mines a 92 also.Easiest thing to check first is the passenger axle popping out of the diff.It's the passenger axle tube diff side not the cv axle .The gap looks like this and the 4x4 light wont come on if it slides out.

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