There isn't a water control valve. The airflow is directed around the heater core by a door to control temp.
The heater controlvalve is located on the firewall just to left of your powerbrake booster.It will have two hoses going to it,one goes directly into firewall and the othoier hose will be attached to your heater control valve,then spliced to your firewall! Hope this helps.
may be your heater control valve
Heater Control Valve IF there is Vaccume going 2 it.Butt feel both heater hoses & if the Valve is bad - only one hose will b HOT.
either your heater control valve is bad or you heater control switch on your dash is broken pull the knob of and see if it is cracked.
as far as i know it on the vac by the firewall left side
The 1991 Acura Integra idle air control valve can be found on the firewall. The valve will be on the drivers side of the firewall.
This is an indication that your heater core is leaking. To stop the leaking you will have to replace the heater core or stop using your heater.
The air control valve on a 1991 4.3 S10 is on the engine. Kindly refer to your usual manual to see the exact point, where it is located. The Idle Air Control is attached to the base of the throttle body.
The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.
remove the bench seat behind the drivers seat. remove the service panel from the interior panel on the drivers side.
Too the best of my knowledge, no. The 1991 used a sealed beam and the 1997 used a halogen type.
its on the trottle body
1991 PA ???? Low coolant in the system,...... faulty vacuum door between the heater core and evaporator (A/C) core,..... bad heater control valve,.....
how do you fix a gas guage on a 1989 ford aerostar
Hope this helps and is not to late.
Check the A/C fuse, that's what happened on my '85.
The idle air control valve is located next to the throttle body. It is connected to the air cleaner hose on the top of the engine.
Evaporative canister purge control valve circuit fault
Inside the passenger side tire...
Make sure your heater control knob is not cracked, or it will just be slipping on the shaft. Also inspect the attachment where the control cable attaches to heater control valve (underhood). You can adjust the tension of the cable by pressing on the tin part that holds the cable sleeve in position. IF you have done the above, there are a couple of other possible faults: 1) Faulty thermostat (stuck open) 2) low coolant levels or other cooling system problem
picture of engine of 1991 ford aerostar van
can happen when vacuum line is disconnected . look under hood to right of heater hoses. one vacuum line goes to heater valve (gate)on heater hose ,the other should go past this to a small sized metal object the size of a small lemon. if this is disconnected only defrost will work. I HOPE YOUR 91 IS SIMILAR TO MY 93.
If the blower is good then the problem is coolant. Something is stopping the warm coolant from the engine from reaching the heater core inside the car. This might be thermostat, heater control valve, blocked heater hose or a blocked heater core. I would suggest letting the car warm up and checking the heater hoses (2) by hand to see where the hot water stops. If there is no hot water at all it is probably a thermostat problem.