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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15133
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2005 2500HD GMC. Mydoesn't work. I have installed a

Customer Question

I have a 2005 2500HD GMC. My*****doesn't work. I have installed a new solenoid on the front diff. I can here the encoder motor switching from two to four wheel drive. I have even gone as far as changing out the fork and gear in the front diff. Still no four wheel drive.
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.

I am sorry for the long wait

with the front wheels jacked upp off the ground and the truck on and it shifted into 4HI if you turn the front drive shaft from the transfer case to the front diff will a front wheel move while turning the drive shaft by hand ?