Question about 2002 Lincoln Navigator

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Water circulation diagram 2002 Lincoln navagator blows cold air

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Check the heater hose's going into the fire wall for being hot ! You don't need to know coolant circulation diagram . If the heater hose's are hot , problem is inside , temperature control actuator ! How to Fix Car with No Heat Easy

Posted on Dec 17, 2016

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Posted on Jan 02, 2017

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My Wife's care overheats and the heater only blows out cold air.


check that the thermostat is in correctly as it will cause no circulation but overheating. have a compression test done to eliminate head gasket /cracked head. There could be a blockage in the heater core but I am thinking that by passing the heater fan he has also by passed the actuator( coolant valve) for the heater core. Water pumps suffer from bad bearings and very seldom anything else. check that he hasn't blocked off the water to the heater core as well
the throwing back of the coolant is the boiling of the coolant in the block ( bad head gasket) due to lack of circulation. It may be a blocked radiator as flushing doesn't fix the blocked cores . If that is the case a new radiator is in order.

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02 navigator front heater blows cold air


Sounds like the blend door or blend motor is not functioning/opening. This door allows the heat/cold air to come in by adjusting open, closed or anywhere in-between for temp. Start there. They are usually vacuum controlled and mounted under the front dashboard near the knee board.

Nov 09, 2011 | 2002 Lincoln Navigator

1 Answer

I have a 2000 lincoln ls v8. First the heat would only blow out cold air. Now the car overheats. I've changed the thermostat. The system coolant is full. I don't know what else it could be. Also how can I...


Water pumps go bad when they leak. If there is a lack of circulation, there could be a clog in the system. Is the heater core getting hot on both tubes at the firewall? If not, then the heater core is clogged up. Has anyone ever put too much sealant into the cooling system that would cause an overheat condition due to lack of circulation of coolant?

Good luck on this repair.

Dec 18, 2010 | 2001 Lincoln LS

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Heater blows cold air


Heater core could be blocked up, or the blend door is stuck on the cold side of the a/c evaporator or the blend door is stuck in the cold position.

Sep 09, 2010 | 2002 Dodge Caravan

1 Answer

Hi,my 1995 bmw 316i only blows cold air.even when the temp control is full at red it blows ice cold air,thanks.rod


check hot water is circulating through heater rad by feeling the inlet and outlet pipes as they come thru the bulkhead if ok it sounds like there is a control panel prob, if hot water isnt circulating make sure cooling system is bled properly, and you could try backflushing the system.

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I have a 2002 lincoln navagator , I can not find


it's located on the accumulater. an silver colored bottle near the firewall

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I have a 2002 Lincoln LS heating and cooling issue


First scan for codes. Is it a v8 0r v6?

Feb 16, 2010 | 2002 Lincoln LS

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1994 Dodge Spirit heater blowing cold but radiator is overheating


1st you need to make sure no air in your system open you radaiator cap and your heater to max and see if air bubles or circulation is going on fill up accordingly otherwise you have blockage in your system or water pump if no circulation ////make sure no bubles all bubles should be gone////look for coolant circulation in your radiator make sure your thermostat is not defective or placed in the right position.

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2002 Lincoln Navigator. Heater is not working, it blows cold air. I had the thermostat changed and it stills blows cold air. There is no water leaks under the dashboard. It takes about 10-15 min for...


try changing the thermostat if thats not it check and see if you have water leaking in the passenger side floor board if so then you need a new heater core

Jan 05, 2009 | 1999 Lincoln Navigator

1 Answer

Heat blower not working


If it is the blower motor that isn't working you shouldn't have cold air blowing out either, if that is not the case, and you have cold air blowing out the vents I would guess that it's a problem with the blend doors. They redirect the flow of air to change the temp.

Dec 13, 2008 | 2000 Lincoln LS

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