Question Asked: I have a 2005 mercury montego. Why doesn't my heater blow hot?
February 06, 2014, 05:43 AM
Just yesterday I replaced the water pump and thermostat.
The heat still blows cold. Now when I turn on the defrost I feel warm air as long as the vegicle is moving. But at an idle both defrost and heat blow cold.
Question Answered: where is the water pump impeller located and can it be easily checked
February 06, 2014, 05:29 AM
The impeller is on the right side of the engine (when facing the vehicle) attached to the upper cam shaft.
To replace you'll need to remive the air breather and all hoses. There are 9 bolts (8mm) holding it on. Its fairly easy to replace with patience.