Question about 1998 Ford Taurus

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The heater does not blow hot air just cold air all vent controls work.if running air conditioning can control temp with the hot cold control

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The first thing to check is the coolant (antifreeze) level in your radiator. If this level is too low it could cause your heater not to blow hot air. Check this when the engine is cold by removing the radiator cap. Do not remove the radiator cap when the engine is hot. If you do, you run the risk of getting scalded by hot water and steam that can shoot out the top of the radiator. The radiator should be completely full. If it's not, fill it up with a 50/50 solution of antifreeze and water. Also make sure the radiator overflow tank is filled up to the full mark. This is usually about halfway up the tank.
If your coolant level is ok I suspect you may need to replace the thermostat. It may be sticking shut and not letting hot water get to your heater core, or it may be sticking open and preventing your engine from reaching its normal hot operating temperature. A thermostat is relatively inexpensive and usually easy to replace. Just make sure you follow the instructions and put it in facing the right direction. If the thermostat is ok then you may have a blockage in your heater core. Replacing a heater core can be a difficult job on some car. If this is your problem I recommend taking the car into a garage to have the repair done. I hope this helps you out.

Posted on Nov 16, 2009

  • gdcroft Nov 16, 2009

    If you recently bought this car and the heater has never worked it's possible that the previous owner bypassed the heater core with a hose. This is often done as quick fix when a heater core starts to leak. It fixes the leak but you no longer have a working heater.

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