1996 chev pu 1500 4wd acuator wired to stay on always.
Is the front axle supposed to be ingaged always even when in 2wd? three wires to acuator two are powered up when put in 4wd other one I think is ground looks like someone has spliced brown wire into the 4wd light senser. also my chain in tranfer case is slipping now probly because of that.
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Re: 1996 chev pu 1500 4wd acuator wired to stay on...
Your best bet would be to take it to your local mechanic or yourself if you feel comfortable with it and first correctly rewire the actuator. If the chain still keeps slipping after this which it probably will you need a t-case rebuild.
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replace the 4 wheel drive acuator if in 4wd with selector and the wheels are still free then the acuator is bad even tho you 12v the acuator may not be pulling back to lock in the hub for 4 wd. simply replace it as their is a small spring on the acuater that over time becomes week and can no longer hold the presure that is created when it activated.
There is a swith on the xfer case. Do this...Key on engine off select 4wd. With a 12 volt test light go to the front axle and disconnect 4 way connector and check for power to front axle actuator (About 2 inch in diameter screws into axle on pass side) I believe wire color is brown. If you have power you have a bad acuator (unscrew from axle). If you do not have power you have a bad xfer case sw or blown fuse.
on the top side of the transfer case near the shift arm ....there is a transfer case indicator swtch.... connect into the only brown wire on the switch.........Be sure to solder the wires together, scotch locks are a no no ,, will corrode and cause intermittent connection, wich can result in other 4 wd component damage
Possible the front acutator is in operative. First check the wiring, since it runs under the axle tube, the check for power at the acutator plug in, if power there acuator faulty. If no power start with fuses. hope this is a starting point for you.
The brown wire you are talking about should have a whiteish colored plug. If you look very carefully at the junction box down below the dash, you should see a male terminal port to the right side of this junction box, it should have the abrieviation wht next to it. It is the switched power source, it comes from the 4x4 fuse in the upper fuse panel.
the front diff. is engeged by a thermal acuator in the front center section. check that the wiring on the pass. side of the front axle is of, if so the the acuator is probably faulty. Best to get an aftermarket posi-locking shifter if you need to replace the thermal unit.