jtav2002

Just to follow up. I had it in and they couldn’t replicate the issue. The following weekend I had the opposite issue almost with the temp randomly shooting up within seconds and then going back down when letting off throttle, accompanied by overheating message. After stopping and restarting fans ran for remainder of the drive, about an hour and a half with temp staying below minimum 160 reading. Took it back in again and it finally acted funny for hem but they weren’t sure exactly what was causing it. GMC told them to just replace the coolant sensor and all the associated wiring harness. No issues since.

No AC on. No check engine lights. When the fan isn’t running temperature will snow normal. It’s just in the instances where it’s running it stays much cooler.

I guess that’s a bit of an assumption on my part. I could hear it running anytime I’d stop and the temp stayed below 160 the whole time.

Has anyone had their fans run at random times? In the past couple weeks they will randomly come on when the truck isn't running hot. Had them run for a nearly 3 hour drive a couple weekends ago. Had them come on for short 10 minute drives. Once they come on they stay on until i turn the truck off (and then it runs for 10 seconds or so after). Keeps temperature below the 160 minimum reading. Thoughts? 2019 AT4 6.2.

What’s the diode method? I did the boost auto mod on my Sierra. They come on with my running lights when remote started. I don’t believe they come on when unlocking. Granted I rarely unlock with the fob and use the keyless buttons on the door.

Just picked this new 2019 Pacific Blue AT4 6.2 this week.

Yea. Nothing exciting on the 2020 Trail Boss either from the couple dealers I heard from. Couple grand off. Discouraging so far. F-150 deals are good but not my first choice. I feel like if I’m gonna settle I might as well just save more money and just get another Tundra.

I'm currently shopping for an LT Trailbosses and AT4's. Best I have been able to get them down to, including 2500 rebate is 58,068 on an AT4 with a sticker of 64,475. I'm not a Ford fan overall but have kept them in the mix too just because they tend to offer good deals before any haggling. Before even trying to get anything off I'm at 54k on an F150 with a sticker of 66k. I would buy the AT4 without question for that price as i like it better, but not 4k better. Also waiting to hear back on pricing from 2 dealers on a 2020 LT Trailboss. Truck I spec'd had a sticker just over 59k so I'm not sure what I should expect there since 2020's are only starting to trickle in and it would potentially be an order if I want to buy sooner rather than waiting for lots of inventory to build up on 2020's.