The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - replace water pump at same time of radiator?

72SB · 03-11-2024, 05:57 PM

new radiator, absolutely flush motor and heater core. You don't want crud in new radiator. New cap also.

If WP is of unknown age or miles, replace it. If you know the history of it than it should be fine if there is no play in the shaft. HD water pumps typically were on AC vehicles. Nothing wrong with running one.

All hoses, including heater. T stat also. Good time to add belts if they are old.

03-11-2024, 05:57 PM	#5
72SB Registered User Join Date: Apr 2022 Location: Moorpark, CA Posts: 702	Re: replace water pump at same time of radiator? new radiator, absolutely flush motor and heater core. You don't want crud in new radiator. New cap also. If WP is of unknown age or miles, replace it. If you know the history of it than it should be fine if there is no play in the shaft. HD water pumps typically were on AC vehicles. Nothing wrong with running one. All hoses, including heater. T stat also. Good time to add belts if they are old.