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Question

I have a 1996 1 ton 4x4 and the light on the 4x4 am won''t light up n it won''t go into X XXXXX XXXXX. How can it be fixed?

Submitted: 574 days and 13 hours ago.
Category: Chevy
Value: $15
Status: AWAITING CUSTOMER ACTION
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Optional Information

Optional Information:
1996 Chevrolet 3500 6.5

Already Tried:
don't know were to start looking

Posted by Eric 574 days and 9 hours ago.

Info Request

Hi, is this the manual 4wd, (lever on floor) setup? Let me know. Thanks Eric

574 days and 7 hours ago.

Reply

yes it is on the floor

Posted by Eric 574 days and 7 hours ago.

Answer

Okay, there is a actuator that goes into the front axle with a plug on it. I believe it has two wires, disconnect it and with a test light see if you have power on one of the wires WITH the truck in 4wd high. Let me know what you find. Thanks Eric also the key needs to be on

Edited by Eric on 4/28/2008 at 7:16 PM

573 days and 15 hours ago.

Reply

Their are 2 different sets of 2 wires going into 2 different connections. 1 is about 11/2" x 4" long. the other is 1/2" around x 2" long, neither of these had any power to them.

Posted by Eric 573 days and 14 hours ago.

Answer

its the bigger of the two, it is the actuator that engages the front diff. Okay, should be a black wire(ground) and a light blue wire. The light blue wire should have power on it with key on, also the other little switch should also have a light blue wire that has power. Since you dont have power on either, first check the fuse marked 4wd (25amp) in box on side of dash. If fuse is good, then there is a switch on top of the transfer case. Unplug it and check for power on the brown wire. If you have power there then the odds are that the switch on the transfer case is bad. Let me know what you find. Thanks Eric

573 days and 12 hours ago.

Reply

Eric the fuse was blown, I changed it and it blew right away again, so what do I check next. Jerry

Answer

Disconnect the transfer case switch , and both switches on the front axle, put in another fuse and see if it blows, if it doesnt then plug the switch in on transfer case first, if it blows then that switch is bad, if it doesnt then leave it plugged in and move to the big actuator on the front axle, plug it in, if the fuse blows then that actuator is bad. The other smaller switch on the front is just for the light on the floor showing you the position of the transfer case, plug it in last if nothing else blows the fuse. Let me know, Thanks Eric

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Expert: Eric
Pos. Feedback: 99.1 %
Accepts: 
Answered: 4/29/2008

Master Technician/shop foreman

ASE Master Technician, 25 years experience, Over325 General Motors certifications

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