I had stored my SHO in the garage with a Pulsetech maintainer on the battery for about 2 months, and went to flash the ECU with a new tune, then went back to the previous tune. I fired it up, and noticed the cooling fan would kick on immediately. I had to do about 300 miles over the weekend for a trip, and only once during a cold/warm start did the fan not run continuously. Each instance, I did not run the A/C or defrost.

Just this afternoon, I did a cold start (ambient of 75F) and the fan kicked on immediately. I noticed my A/C pressure reading is 107 psi even without the engine running (using FORScan).

Has anyone encountered this issue on a later model Ford?