85 GMC C1500 Overheating

Asked by BradParks1 Jul 28, 2011 at 06:09 PM about the 1985 GMC C/K 1500 Series

Question type: Maintenance & Repair

My sons GMC overheated last night and blew a hole in the radiator.  We replaced the radiator, but it is still overheating.  Not sure if this is related to the thermostat or the water pump.  Is there a way to tell?

1 Answer

Jeff answered 12 years ago

did you purge all the air from the new radiator? remove the thermostat and disconnect the top radiator hose from the radiator. start the engine for a second, if you get coolant out the hose its not the waterpump.

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