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If the problem is that the air never gets warm, it's most likely a stuck-open thermostat. If not that, heater core may be plugged.
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What would cause the heater in a 1997 Taurus not to work even after you drained the radiator changed thermostat and added new coolant?
the heater core could be pluged or the heater control valve is stuck closed
What could cause the AC lighter and heater control panel light to not work on a 1989 Nissan truck?
check the fuse
Can a leaking heater core cause your ac not to work in 03 durango?
You may smell coolant when the ac is running but a leak in the heater core won't cause the ac not to work.
Would a broken heater cable cause the air cond not to work also Ford Festiva 1997 GLXi?
Yes it could also cause the A/C to stop working.
How can a thermostat affect the heater?
if the thermostate is stuck open it wont allow the coolant to reach a certain temp. which could cause the heat to not work to well.
What can cause heater not work?
Possibly the Heater Motor, if the fan is not coming on at all the bearing in the motor have probably gone out.
Will a weak circut breaker cause a water heater not to work?
Yes
What could cause the dash lights and lights in the heater not to work on a 1993 Tracker new ECM alternator and bulbs?
either a fuse for dash or the light switch
What would cause your seat heater not to work on your ford five hundred?
could be the switch to turn it on or the heating unit itself, let an professional take a look at it
Will low coolant cause a cars heater to not work?
Yes. The coolant carries the engine heat to the heater core. Without coolant the heater core does not get warm.
What would cause the heater not to work on a Toyota Camry?
Most common things are Thermostat or a bad heater core but could also be something blocking the door down by the heater core. I changed my Thermostat and Heater control Valve to find out a pencil fell in the defroster and prevented the door from closing. Hope this helps.
What could cause your heater to not work even though you have proper coolant levels?
The thermostat may be stuck in the open position, so that the water is not getting hot enough.
