Mechanics

WHY IS MY OVER HEATING?

1985 Isuzu Truck • 122,000 miles

It onlu does it every once in a while like it will be cool get to running temp and stuff then suddenly just shoot up and then I pull over turn my truck off let it sit for like five mins start it up its still really hot but cools right down and ive put a new thermostat in but it didnt fix it maybe the water pump?
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Isuzu8595
August 16, 2012.



Check y oru radiator for cool spots, if there are any cool spots then your radiator is bad. It should be same temp all over. If fins are loose and corroded then that is another tip off.

Hmac300
Aug 16, 2012.