Welp... That was short lived. Apparently what I was feeling was the transmission on its last hoorah. It started shifting weird today and making an odd noise (owned it less than 24hrs). I happened to be near the dealer I purchased it from when it decided to get stuck in what I assume was 4th or 5th gear. I went ahead and limped it there and their mechanic gave it a quick scan and reset everything. He said it had a BCM communication code? (I believe that's what he said) and assumed resetting it would fix it.
It did, kind of.
The lot is next to a GMC dealership that some good friends of mine work at. I went ahead and drove it over and had them do a quick recall fix on some type of braking issue and had them reset my tire sensors from where they swapped wheels for me at the other dealership. They printed out all the GM service records for me and the mechanic went ahead and did a quick computer check with a GM Scan tool as well. He thought what I was feeling was most likely the 4 to 8 cyl deactivation/reactivation causing the rumble.
Welp... it wasn't. I got on the interstate set the cruise to 70 and made it about 4 miles without issue. Then I assume it lost a gear and revved to the moon. The D for drive started flashing and I wasn't able to get it to shift manually/electronically. I got super lucky and coasted just far enough that I rolled into a rest area. I called the dealership and the owner (they own a really nice towing company) sent a rollback immediately to me and brought me back to their lot. I guess I'll know more tomorrow. I know the owner and he felt horrible, and even have me the keys to his personal vehicle. I refused, but I have no worries they'll make it right. Plus I opted for an extended warranty through my credit union. No clue how it works, but it is through Route 66 (main street coverage). I guess on the bright side... maybe they'll put a new remanufactured transmission in it. I'll update the post once I know.
Nick
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