Check your coolant levels, and check your thermostat - it may need replacing. Also check your heater hoses to ensure they're not leaking.
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∙ 14y agothat is bad... go get it checked up on!
can you please clarify what you mean, do you mean that the front heater blows cold but the rear blows hot or do you mean that when the heating is on cold it blows hot? many thanks paul
Poor circulation from a restricted/plugged heater core. Try flushing it.
Get the air out of your heater core.
When your air conditioning isn't cold
heater hoses might have been disconected
sounds like the cable from the knob is streached/broken or flap has stuck closed
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?
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.
the heater blows warm air when fan is on low but blows cold air when fan is turn to higher setting
you must have low coolant or a bad heater core
we changed radaitor & thermastate , now heater blows cold air