OK I'm new to this site. I've been a member of the chevelles.com site for 3 years for my 69 Chevelle SS396, but now I need help with my son's 1988 camaro 305 tbi. We've had the car for 2 years. Last week while on the freeway the temp gauge climbed (hot day, air cond. on) Pulled over to check it out. Wasn't that hot. When he got back in the gauges were all dead. Checked the fuse and it was blown. New fuses just blow instantly. Also, when the lights are turned on, the buzzer that tells you that you left your lights on stays on even after starting the engine. Also the cruise control is dead.........So far We have checked under the hood for loose or frayed wires. Disconnected the temp sender. Removed an OLD alpine security system that didn't work but had lots of wires everywhere. Attempted to get the gauge package out so we could look for a dead short. (the dash is a bit more complicated than my chevelle). Anyway so far no luck, it still blows the gauges fuse as soon as you turn the key on.
Who knows what's wrong or where the short is? I hope this site is as helpful as the chevelle site. THANKS

 

im sure you already have the problem fixed but if not i might be of some assistance. my car did the exact same thing that your car did. i brought it to a mechanic and he tore the whole car apart and found nothing. finally he ripped out that whole stick with the wiper blade and cruise constole thing next to the left of the steering wheel and found that there was 2 open wires that were touching together and blowing the fuses. so try that