Mechanics

CHEVROLET SILVERADO WIRING PROBLEM

2000 Chevrolet Silverado • 93,000 miles

My 4wd will not shift every time. I have replaced the drive motor on the front axle and there is power. The lights on the push buttons on the dash do not light up all the time. I have taken the switch out of the dash and moved the wires around and get the lights to work from time to time. I have cleaned the connectors on the switch and wiring harness.
Is there a way to test the switch or wiring to the next switch behind the dash or on the transfer case?
I also have had the service 4wd light come on along with the odometer/transmission position lights come and go at will along with the gas gauge. Any connection between this issues?

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Guest
December 19, 2012.



See if the actuator on tcase is getting power they go bad too

Hmac300
Dec 19, 2012.