Chevrolet Repair: Dash gauges & turn signals intermittent failure, daytime running lights, turn signals

Question
I have a 99 Astrovan with 4.3 and awd.  When driving for 2 hrs or more, dash gauges, overhead console display and turn signals fail.  Usually comes back the next day or so.  This time, it has been mostly off for a week.

Answer
Hi Don.... something is overheating the circut...check for something grounding out...check for a bad signal flasher...install heavy duty one, is van equipted with daytime running lights...if so check the drl module..also check light relays. hope this helps