its mounted on the fan shroud on my 09
2008 GMC Sierra transmission control module
Does anyone know where this is located? I thought it was behind the ECM and changed whatever that is but the no shift/no speedometer issue is still with me. I also changed the VSS. Any ideas?
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inside, part of the valve body
its mounted on the fan shroud on my 09
That's likely the one that I changed on mine...under the fuse/relay box next to the ecm.
4 is next to ecm, 6 speed inside
4 is next to ecm, 6 speed inside
This one is a 4. 4.8 1500.
Tell me what it is doing and do you have any codes?
Tell me what it is doing and do you have any codes?
I figured it out. The TCM was bad. I changed it but still had problems. I was told the new one was good to go right out of the box. It wasn't. Limped the truck up to my local Chevy dealer and they reflashed the new TCM. All is well now. Thanks for the replies.
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