Having problems with your 2007 GMC Sierra 2500HD ?

I have a 2007 gmc 2500hd duramax with an allison 1000 ******.......when i out it into drive, i can sit still for about 5 sec. then it shifts into second without moving an inch. will shift 2-3-4 perfectly fine but wont go into 5-6 at all....dtc code says shift solenoid c is stuck open.....i've flushed the fluid, replaced both filters, and replaced the c solenoid, cleared the code, then it pops back up saying the same thing. HELP!

Posted / edited by AnonymousUser on : 16-07-2018

Answers :

Repair Help & Product Troubleshooting for 2007 GMC Sierra 2500HD

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