I have an '05 Z71 Silverado. Had my transfer case replaced. Still nothing. Mechanic had a code come up that he couldn't find and said I'd have to go to the dealer. Please, tell me it's not the differential. Anyone have problems with the push button switch itself? Going to the dealer Wednesday and don't want to get nailed with a huge bill. BTW, I'm a woman

 

Herein lies a lesson.

Take it to the guys who know what they are doing FIRST. It's already cost you the price of a transfer case..............

Sorry you have 4-wheel drive issues,

Allan

 

I did need the transfer case and actuator. I suppose you could tell everyone who posts on here to take it to the dealer first. But, we can't all afford it.

 

ok so what is the problem your having, I assume the 4wd doesn't work altogether? What is the code?

 

Well, not siding with anyoone, however your mechanic can't fix it. Allan isn't, by reading his past posts a proponante of going to the dealer, he was IMO saying with a 4wd problem, you might should have taken it to a 4wd shop.
If you can post what is the problem, and code, perhaps someone on this board can diagnose it.

 

It was "transfer case lock circut malfunction."

 

After searching the internet for a bit, I've come up with the code. I think it's C0321; encoder motor sensor. I believe the part is $60.93. Hopin' that's what it is.

 

Pegrizz,

I would recommend to take it to your local dealer also. I would be happy to check and see if you are still under Powertrain Warranty. Please PM me your VIN and current miles on truck.

Thank you,

Tina( Assisting Louis)
Chevrolet Customer Service

 

Thanks for the reply. I took it to the GM dealer on Wednesday. Turned out, they replaced a wire and corroded connectors, $300. I did need the transfer case and the actuator. Before I had everything replaced, there was a grinding noise. The truck is no longer under warranty, it has 142,000 miles on it and runs great! Thanks again for your reply.