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Look near or behind the alternator. The valve that controls flow of coolant to the heater core on my 1987 Aerostar is located on the left wall of the engine compartment. I imagine the 1991 is similar. Trace the heater hoses from the engine/water pump and you will find it.
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Where heater control valve on a 1991 dodge dynasty?
There isn't a water control valve. The airflow is directed around the heater core by a door to control temp.
Why does the dual-zone front only heater only put out heat on the passenger side in a 1991 Buick Regal?
may be your heater control valve
Where is the heater control valve located on a 1991 Plymouth Voyager?
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.
What is the probable cause if a 1991 GMC pickup heater suddenly stopped blowing warm air?
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.
1991 Honda Accord SE The climate control only blows hot air even if you turn it to cold?
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.
Where is the AC low side valve for a 1991 Ford Aerostar?
as far as i know it on the vac by the firewall left side
On a 1991 Ford Aerostar with Dual Heat why would you have water running on the ground on the passenger side?
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.
On 1991 acura integra were is idle air control valve located?
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.
Where is the second heater core in a 1991 ford aerostar located - is the heater system a loop system?
remove the bench seat behind the drivers seat. remove the service panel from the interior panel on the drivers side.
Why does the heat in 1991 Park Avenue function intermittently. When on it will sometimes blow hot but then cool down for no reason. Other times it will not come on at all in auto mode or otherwise?
1991 PA ???? Low coolant in the system,...... faulty vacuum door between the heater core and evaporator (A/C) core,..... bad heater control valve,.....
Where are the idle air control valve and the EGR valve on a 1991 Chevy Corsica 4-cylinder LS?
The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.
Where is the air control valve on a 1991 4.3 s10?
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.
