Q: Truck overheating coolant not cycling throughout engine. 2002 Chevrolet Silverado
Just put in a brand new water pump and thermostat. Over heating wasn't an issue before I replaced waterpump & thermostat. Prior my only issue was a leak from a wobbly waterpump pulley (no longer a problem).
My car has 193675 miles.
My car has an automatic transmission.
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Hey there, thanks for writing in. You need to make sure all the air was purged out of the cooling system. If you did not get at least 2 gallons of coolant mix in the engine, then you may have excess air in the system. Check that the cooling fan clutch is locking and radiator is getting hot - not just the engine. If the top radiator hose is cold and the engine is hot, then your new thermostat is stuck closed. If you need assistance with this, I recommend having all of these items checked for you in order to have the overheating issue diagnosed and repaired correctly.
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