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Low coolant level.
Open thermostat.
Bad heater control valve.
Plugged heater core.
Bad water pump.
An inoperative airflow control or inlet door in the heater ducting or plenum.
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∙ 15y ago
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What is wrong if the heater in your 1994 Ford Taurus LX 3.8L does not get very warm or very fast?
Could be a plugged heater core. Check the engine temp guage. if it is getting warm, your heater core could be plugged or restricted.
Why is your 2007 ford f150 truck heater blowing only warm air and not getting hot?
Your heater core might be clogged or otherwise inoperable. Videos for unclogging a heater core can be found quite easily on Youtube.
Does a 1995 Ford Contour have heater coil?
Yes , a 1995 Ford Contour should have a heater core . It is used to warm the air ( if necessary ) that comes in to the passenger compartment of the vehicle
What could cause the heater or defrost to NOT blow warm or hot in a 1988 Ford Bronco ll?
Blocked heater core, faulty heater valve, disconnected connection to the heater valve.
Why is the heater on your 2002 jeep liberty blowing warm not hot?
this is not an answer just an update. coolant is filled
Why is heater is not keeping house warm?
A heater may not be keeping a house warm because it is too small for the space. An older heater may not be performing as it should. If you are getting no heat from the heater, you may have blown a fuse and should check the circuit breaker box.
What is wrong with an Oldsmoblile cutlass car heater tht will not stay warm?
check your thermostat or your heater core may be getting ready to go out
Heater problems on ford 1999 expedition?
the heater blows warm air when fan is on low but blows cold air when fan is turn to higher setting
Where is the thermostat on a 1992 Lincoln Town Car?
The heater cor was replaced but it is still not getting warm
Why does a 1990 ford bronco have a block heater?
It is used in extremely cold climates to aid in starting. The block heater keeps the fluids warm for a much faster start.
What would cause a 98 dodge 1500 4x4 heater to blow luke warm air?
Any heater that only blows luke warm air isn't getting warm or hot water to the coil. This sounds like a problem with the thermostat not closing, and allowing the engine to heat the water properly for the heater.
I replaced the fuses and relay and heater motor on a 1997 Ford Ranger XLT and still no warm air blowing a little warm air when driving only?
After the engine is warm up and hot - feel the water hoses to the heater and test if they are HOT- HOT. NO?- The water valve may not be letting hot water go to the heater core.
