Ok guys I just picked up a clean 95 Z28 with a 143k on it. Its been running great but recently the service engine soon light popped on and the fan motor runs constantly when the the car is moving. When I come to a stop the fan cuts off and the light goes out. The car is running at 180 degrees all the time. any ideas? thanks!

 

You need to get the computer scanned and see what it is complaining about, and then address the problem. Your car is OBDI with a OBDII diagnostic connector, so it has to be scanned with a scanner that supports OBDI and has a OBDII cable.

 

OBD Diagnostics, Inc. - ALDL (GM OBD1) Cable with 16 pin Connector