Question about 2005 Mercury Grand Marquis

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Where is the heater control valve located on a 2005 mercury ls ?

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  • Mercury Master
  • 4,369 Answers

You have a air blend door in the plenum, no water valve.

Posted on Nov 09, 2010

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: location of heater control valve 2005 grand prix

i don`t think there is a heater control valve.you may have an air pocket in system.

Posted on Jan 06, 2009

chrischronic
  • 235 Answers

SOURCE: 2002 LINCOLN LS V6 3.0 PCV VALVE LOCATION

it is down under the intake manifold. the intake manifold must be removed to get to it. this vehicle is known for developing a vacum leak in the elbow hose that connects to pcv valve, so ive done a few.

Posted on Feb 19, 2009

  • 15 Answers

SOURCE: 1995 Nissan Altima Heater contorl valve location

HELLO THE HEATER CONTROL VALVE IS LOCATED AT THE REAR CENTER OF THE ENGINE COMPARTMENT BY THE FIREWALL

Posted on Mar 02, 2009

  • 396 Answers

SOURCE: where is the heater control valve locatedon a 2002 mitsubishi

Most heater control valves are on or near the firewall behind the engine. Look for coolant hoses attached to a small metal piece. It also will have an arm that has a cable from inside the vehicle attached to it.

Posted on Oct 19, 2009

johnjohn2
  • 5763 Answers

SOURCE: AC/Heater control valve :Lancer 2003 Misubishi

replace the knob, this doesnt have some valve you can just change to make it switch,this is a blend door with electrical actuator that moves the door from hot to cold air and also turns on or off ac depending on if that has a separte switch else where on control,you would have to remove the actuator and move the door and then some how jam the door so it doesnt move, i think its easier to replace the knob or use plier to twist the shaft of the control where the knob did.

Posted on Apr 21, 2010

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1 Answer

Where is the heater control valve sensor located on a 2005 jaguar s-type


the heater control valve or dual control is controlled by the climate control module, what is the problem? the common issues are no cooling which is normally the dual control valve defaulted to open because of corroded/open circuit wiring to the valve,

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1998 mercury grand marquis heater doesnt work only cold air comes out the air cond works fine the enginecoolant is new, the engine doesnt overheat.


Either your heater control valve is not properly operating or your heater core is clogged. Locate the heater control valve under the hood, should be close to firewall on heater hose, have someone adjust temperature from hot to cold and see if you can see the heater control valve operating if so replace the heater core, if its not doing anything replace it(heater control valve).

Feb 19, 2011 | 1998 Mercury Grand Marquis

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My 2005 linclon ls is having a problem with the cooling system. I have plenty of coolant but my air blows out at the hottest setting only. Not just vent air but it blows like the heater is turned up all...


The solution lies in determining if the heater control is bad or the heater control valve is bad.
If you remove the heater control and using a ohm meter check the resistance on the control while disconnected from everything. When connected to the ohm meter you can turn the control knob and you should see less resistance as the knob moves from cold to hot. If the control checks out then it likely to be the valve assembly. Just order a new heater valve and replace.

Jul 30, 2010 | 2005 Lincoln LS

1 Answer

2005 Lincoln LS. It blows extremely hot air all the time, and is unresponsive to temperature inputs from either side of the car. It always blows hot air.


There is a very good chance the Dual Coolant Control Valve has failed. This is located at the botton right side of the engine fan shroud and has 3 heater hoses connected to it. This valve controls heater or AC temperature inside the car.

Jan 05, 2010 | 2002 Lincoln LS

1 Answer

Heater does not work on my 2005 chevy impala ls but the blower does but blows cold air


If you car is coming to temp but you get nothing from the heater the first place to look is the coolant valve for the heater core. It is sometimes called a mixing control. See if the control is jammed or your control cable is frozen or disconnected from this valve.

The valve should be somewhere near the cooling lines leading into the heater core. I am sorry, but they may be under the dashboard as well.

Good luck and be careful.

Dec 11, 2009 | 2004 Chevrolet Impala

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My 2005 Lincoln LS V6 has a message that says srvc P


The message means the electric park brake needs serviced. In this case I feel that considering the ac problem, the Coolant Control Valve is defective. The valve can create RF interference that messes with the electronics of the park brake system. The Coolant Control Valve is located at the right side bottom of the radiator fan shroud and has 3 heater hoses connected to it.

Nov 02, 2009 | 2005 Lincoln LS

1 Answer

2005 linc ls heater stays on full heat


might have to replace the whole control panel

Mar 04, 2009 | 2001 Lincoln LS

1 Answer

Location of heater control valve 2005 grand prix


i don`t think there is a heater control valve.you may have an air pocket in system.

Jan 04, 2009 | 2005 Pontiac Grand Prix

4 Answers

2000 lincoln ls heater not working...thermostat?


- If temp guage reads normal, the lack of heat may be due to the Heater Control Valve. Located in front of the radiator. Lower passenger side. A real bugger to replace.
- The plastic cap just over the thermostat is key in re-filling the anti freeze and bleeding air.

Nov 18, 2008 | 2000 Lincoln LS

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