The engine temp and sensor are good.
I disconnected the battery for a few hours yesterday and I'll drive it tomorrow to see how it runs.
The tranny issue is what convinced me of the PCM. Before the cooling fan issue manifests itself, the car shifts perfect with no issues. Once the car has warmed up and has been driving awhile, and usually after turning it off and starting again, it's as if the PCM gets 'confused' for some reason and cuts off the cooling fans. At the same time, the shifting is noticeably different. Around 5 seconds or so after stopping, sometimes the transmission feels like it wants to go into gear, only does it once until I go and stop again.
But those are the only symptoms of the issue. All of the gauges look fine. The coolant gauge behaves normally. A/C works just fine until the fans cut off. Refrigerant pressure is good. No CEL or codes.
I've contacted a few shops from car-parts and haven't gotten a quote yet for a PCM.
I also thought about just eating the diagnostic fee at the dealer since they have the DRB III scanner they could probably tell me immediately what is wrong. But their fee is 3x the price of a used bone yard PCM, figure I'll try it first.
Last edited by codyj; 10-08-2018 at 02:01 PM.