Question about 2003 Toyota Camry

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2003 Toyota Camry 4 cylinder Heater not working

Radiator fluid level is normal.  blows cold air.

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  • Scott  Moore
    Scott Moore May 11, 2010

    does the gauge on your instrument cluster heat up. if not you could have a thermostat problem. otherwise you could have a blockage in your heater core. if you just had your coolant changed you could have a air pocket in the cooling system.

  • Anonymous Mar 28, 2014

    rear heater blows cold air on 1996 toyota 4runner

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I WOULD SUGGEST GETTING A NEW THERMOSTAT, USUALLY DONT COST MUCH AND WILL FIX THE PROBLEM RIGHT AWAY

Posted on Jan 10, 2009

  • CHRISSY CLARKSON Jan 10, 2009

    I WOULD SUGGEST GETTING A NEW THERMOSTAT, USUALLY DONT COST MUCH AND WILL FIX THE PROBLEM RIGHT AWAY

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The heater takes a while to heat up and when you turn it up it blows cold air


It could be your coolant is low.Check it when it is cool and add 50/50 mixture if it is low. If the level is not low your thermostat may be going bad. It controls the flow of the warm fluid to give you heat.

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Engine heats up but takes a long time for warm air to blow. Once working, the thermostat works fine. Sometimes, warm air starts to blow and then goes cooler.


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1 Answer

The heater will not blow warm air until you start driving. The fan blows but its cold air. Once you start driving the air turns warm. Why?


There may not be enough coolant in the system. What happends is the heating core is nothing more than a small radiator inside the car. If the fluid is low the heating core is empty. But once you start driving the water pump works harder and fills it up. Another possible cause is a sticking thermostat. If its stuck open the engine cant retain water to heat it up. Thus blowing cold air. Whith the engine cold remove the radiator cap and check your coolant level. If it is full a replacement thermostat may be needed. HTH and dont forget to rate.

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1 Answer

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1 Answer

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1 Answer

I have ford 2003 it will not blow hot air


One or more of:

1. Your coolant level is low
2. Your thermostat doesn't close and needs to be replaced
3. The valve from the cooling system to the heater core is stuck
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1 Answer

Once i start my car and turn on the heat, it starts blowing in cold air until i get on the road and accelerate more, then the heat starts coming. but once the heat starts it only lasts about two minutes...


Hi Jens,

Two things are happening.

The first is normal. Your heater gets its heat from the coolant ciculating in your engine. In order for it to work, the coolant needs time to heat up a bit. This is true of just about every vehicle.

When it gets cold again is the puzzler.

My advice is to check the coolant level in the radiator.

ONLY when the engine has cooled.

If the level is down, there can be times when there isn't enough water to cool the engine, fill the radiator and the heater core. The result is the heater blows cold air and the engine runs hotter than normal.

So check the coolant. Open the cap. Start the engine and top it off.

Then see if there is a change.

Best regards,
Mike

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