I have 88 gmc GMC 5.7 tbi. I have changed the Water pump,thermostat, hoses ,radiator,flu8sh the heater core flushed the motor and I am still overheating. Any ideas
I have 88 gmc GMC 5.7 tbi. I have changed the Water pump,thermostat, hoses ,radiator,flu8sh the heater core flushed the motor and I am still overheating. Any ideas