Where is the heater control valve on a 1996 Pontiac Grand Am?
Where is the the heater control valve??
The heater control valve is used to shut off hot coolant from entering the core when the heater is in the off position. A heater control valve can be actuated by either a vacuum line or a cable from the vacuum heater control valve to the heater core. This hose should be warm; if not the heater control valve is stuck and needs to be replaced
heater control valve very hard to do, you must lean over the top of the engine to disconnect the hose at the heater core where the hose comes thru the firewall, then do the rest of the work from underneath the van on the passengers side. altho i found it is a bit easier if you remove the power steering pump and reach your hands down to the valve, aproximatly on top of the oil…