A vehicle owner with a coolant leak at the heater core supply line connection on an older high-mileage truck needs to identify the leaking part and find a repair method that avoids replacing the expen

A vehicle owner with a coolant leak at the heater core supply line connection on an older high-mileage truck needs to identify the leaking part and find a repair method that avoids replacing the expensive intake manifold, which he has never done before.