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What is wrong with your heater on your 2001 mercury grand marquis if it only blows cold air?
You are likely in an antarctic region.
When idling a 2002 freightliner the temp drops and the heater blows cold air what is wrong?
You probably have a bad thermostat.
What is wrong if cold air blows out when heater is on?
If your heater is blowing cold air, it’s usually something simple: low coolant, a stuck thermostat, or air trapped in the system. Start by checking coolant level no coolant = no heat. If that’s fine, the thermostat or heater core could be the issue.
If the heater works but blows cold air and heater core is good what do i check next?
Get the air out of your heater core.
What is wrong when the heater on a 1988 Lincoln Towan car blows only cold air when the heater is on?
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.
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
Your heater in your jeep only blows cold air why is this?
The most common reason a automobile heater blows cold air is the water level is low. Check the water level and fill to the appropriate level.
Ac works but heater blows cold air?
heater hoses might have been disconected
2002 dodge ram 1500 4.7 liter heater not working blows but not hot air?
we changed radaitor & thermastate , now heater blows cold air
Why would your heat only work on defrost?
ihave a 1986 chevette that when i turn defrost on it blows out heat and when i put heater on it blows out only cold air? ihave a 1986 chevette that when i turn defrost on it blows out heat and when i put heater on it blows out only cold air?
Why does Heater blows cold air on 2001 blazer?
you must have low coolant or a bad heater core
What causes cold air to come out of air vents when heater not on?
The heater may not be on - but the fan still blows air through the vents when they're open !
