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Before we added coolant, we attached the fenderwell-side heater hose to the water pump, then we poured water in the driver-side hose to fill the core. Next, we buttoned up the system and tested it for leaks. The only leak we found was the water pump itself. Sigh... a Mustanger&#8217s work is never done.
Heater Core Replacement

 Before we added coolant, we attached the fenderwell-side heater hose to the water pump, then we poured water in the driver-side hose to fill the core. Next, we buttoned up the system and tested it for leaks. The only leak we found was the water pump itself. Sigh... a Mustanger’s work is never done.  View Related Article

 

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