[bouncytruck]

Sounds like something is overheating. The headlight switch on my old Escort GT used to overheat when the fog lights where turned on. All the lights that were wired through the head light switch would turn off until the connector would cool down. Ford was smart enough to put in a switch that couldn't handle the load when the fog lights were on. On top of that, they put the fog light switch flat on the center console. It would inavertently get turned on all the time.