Why would the heater blow out warm air but then turn to cold air intermittently?

Anonymous

∙ 20y ago

Updated: 8/16/2019

you should probably check your water in your radiatior and if it is full you might need to replace the cap. If neither of thise are the problem it may be your heater core which sucks or something electrical.

Wiki User

∙ 20y ago

What else can I help you with?

What intermittently causes the heater to abruptly blow cold air at the same time the temperature gage indicates?

Air in the water system.

Why would a house heater blow out cold air?

It doesn't really blow it out it just warms the cold air.

Why would you smell antifreeze and heater blow cold air?

heater core possibly plugged and leaking

Would straight antifreeze make heater blow cold air?

No! Thermostat.

Why would a back heater blow cold air and front heater blow hot air in a 2003 Chevrolet Suburban?

The front expansion valve is clogged.

Why would heater blow out hot in the summer and cold in the winter?

Could be a bad thermostat.

How will the heater react if the heater core is stopped up?

Your heater will blow cold air only.

Why would a 2001 Chevy Blazer heater only blow cold air?

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

Why would cold air blow out when you turn on the heater?

engine not warm, low coolant, or stuck thermostat

What is causing the heater to blow cold air in 2002 Mercury Mountaineer?

you would have to see a mechanic about that problem

What could be the reasons that your 2000 Jeep Cherokee heater would randomly blow cold air and then hot air and then cold etc?

One of the reasons a 2000 Jeep Cherokee heater would randomly blow cold air and then hot air and then cold might be that there is a problem with the hot/cold duct. The air or a vent might be inadvertently blowing periodically.

Why would when you put the heater on it heats then goes cold When you push hard on the dial it starts to blow hot when you let go it gets cold even when it is on hot?

heater switch needs replaced

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