Heater Cores and Blower Fans
Cadillac Eldorado
Car Heaters

Heater on M reg Frontera blowing cold air...any solutions please?

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Wiki User
2010-01-04 17:36:46
2010-01-04 17:36:46
Answeryour heater core may need replacing, refer to your manual, and pick up a new one at a part shop AnswerIs your temperature gauge reading cold?Your thermostat may be stuck open.Is there enough coolant/antifreeze in system? Is the cable that actuates the heater control unit functioning properly?

Answer 3

More likely you have run out of coolant. The coolant heats up as it circulate throughout the engine. The hot coolant produces the heat as it passes through the heater radiator matrix, where the fan blows off the hot air.

Check you dont have a coolant leak, and dont let it run out if you are driving it or you will bugger the engine.

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