1993 GMC Sierra Repair Question
Topics covered: Transfer case, Axle, Wiring.
Mileage: 280,000 miles.
Mileage: 280,000 miles.
Asked on October 9, 2011
Electric actuator on 93 gmc front axle does not engage in 4wd
I just recently lost 4wd on my 93 Gmc 4x4. I checked it out and adjusted linkage etc, checked wiring for breaks as best I could, found no power to electric actuator on front axle. Checked fuse-ok. The transfer case does engage when I manually select 4wd as the front drive shaft locks in.I am wondering if one of 2 sensors I see on the transfer case transfer power to the front axle when I select 4wd is faulty and how would I check them?
Asked by vaceroAnswer
Replied on October 9, 2011
Yes, power comes from a relay. I have attached a wiring schematic for the transfer case. It should help. Let me know if you have questions.
