Problem: The car starts and runs well, for the most part. But at steady cruising speed (mostly 65-75 mph, less often at 35-40 mph), there's a intermittant hesitation and loss of power for 2-3 seconds. It feels like the car is hit with a big blast of wind. Usually, it picks up again and runs fine. Rarely, the engine stalls out (kind of spooky at 70 mph on the freeway), but restarts after 2-3 minutes of sitting. Sometimes, on hot days, it runs rough and stalls in stop and go traffic. The problem seems to happen most often on hot days (95+).
So far, I've done a major tune up including fuel filter, cap & rotor, plug wires, &tc., and I've replaced the TFI module.
Any ideas or advice?
Thanks a heap,
-jbb