Chevy Blazer
Heater Cores and Blower Fans
Lincoln Town Car
Car Heaters

Why your heater in 98 Lincoln town car only blow cold air?

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2006-04-15 07:47:20
2006-04-15 07:47:20

Could be the Climate Control Unit or Clogged heater core.

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Related Questions


http://www.markviii.org/LOD2/blend_door_repair.htm



you may not have the heater water hoses plugged in


replace front heater corefront and rear have independent heater cores


Sounds like the Blend Door actuator, a $6.00 part but about $2,000 in labor, the dash has to be removed to do the job right.


Low coolant in the system. Defective heater control valve. Clogged heater core.



Thermostat and/or heater core may be defective


Possible causes are, low on coolant, thermostat stuck open, clogged heater core or vacuum scorce not getting to the heater control.


check thermostat, might be stuck closed.



bad engine thermastat With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!


check you antifreze level if it is low you wont have eat or if you get lots of fog your heater core is bad


Poor circulation from a faulty thermostat or a plugged heater core. Be sure the coolant reservoir is not empty.


It depends on the type of heater you have. It may be maintaining the room temprature or it may be warming up ( just like how air conditioners start hot )


Only blows cold air with the a/c on while driving, your cooling fan or fan clutch is bad depending on the year, make and model.......... Only blows cold air with the heater on while driving, you will have a bad or broken internal a/c - heater control door.....


Either the linkage from the temp control unit to the valve on the heater core (which is behind the radio and temp controls) or it is the heater core itself.


Your car could be low on antifreeze or your heater core could be clogged. With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!


Your thermostat is the likely culprit here it is probably stuck closed. Have it checked out.



An automobile's heater that blows only cold air could either be a faulty thermostat or, more likely, a faulty heater core. A trip to a mechanic or shop that specializes in radiator and cooling system repair should be able to diagnose and repair any problems.


You probably need to replace the heater core. Be sure to also check your coolant levels, as well as the condition of the coolant - if it's burned out, have the cooling system flushed and the coolant replaced.


The (DCCV) dual climate control valve may be damaged also called heater control valve.


If the coolant level is okay, I would suspect a restricted heater core. Try flushing the heater core.


1) low coolant? 2) bad thermostat? 3) system airbound? 4) heater core plugged? 5) heater control cable broken?



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