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I ended up at a GMC dealer that had told me over the phone that they didn’t have the part, but they ended up finding that they had just one. Got it installed and it’s all fixed. Truly lucked out that they had one, trucks running great.

No GM parts dealer in the west has the part… Spent the afternoon talking to GM dealers and it’s the same answer, it’s one of the parts no one has due to the strike last year causing disruptions. All of them have the same answer, they have no date or info on when they’ll get them in stock...

Yes mine is an LM2. Random temp spikes and then dropping, random reduced power warnings and the high speed fan has happened a few times.

My truck has been throwing this code the last week, it comes and goes. I scanned it and know what the code states. Anyone have any direct experience with the coolant control valve issue? My GMC dealership is 2 hours away and I don’t want to drive all the way in to have them tell me what I...