Question about 1990 Ford Thunderbird

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The heater stop working a couple days after i added a radiator cleaner and the heater stop blowing warm air today, is there a fues to replace or did the heater valve get clogged

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You'll find the heater control valve by looking right above the battery. You'll find a little black hose leading to it.


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Posted on Dec 19, 2012

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If the fan wont blow air at all then it is a fuse. If the fan works and the car is warm you have a clog somewhere. you could try pulling a heater hose off when the car is cold to check for flow.

Posted on Dec 19, 2012

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Posted on Jan 02, 2017

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SOURCE: heater on 2001 ford taurus blows warm air then turns cold

the heater core is probably bad and costs about 45.00 at the auto parts store.

Posted on Dec 06, 2008

emissionwiz
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SOURCE: heater blows cold air ac blows warm air

Your problem is the air temp control blend door actuator is defective and not controlling temp u set. to change/access this part the dash assembly must be removed from the car.

Posted on Mar 24, 2009

  • 1 Answer

SOURCE: Heater is blowing cold air. Could it be that my

Had similar problem. The actuator that opens & closes the air blend door quit working. This is easy to see if you remove glove box. The actuator will move when you adjust the temp selector (do this while the heater is running).

Posted on Dec 29, 2009

  • 14092 Answers

SOURCE: 2002 taurus, power windows all stopped working at

LOOK FOR BLOWN WINDOW CIRCUIT BREAKER.YOU HAVE A SHORT IN WINDOW SWITCH OR BAD WINDOW ELECTRIC MOTOR.YOUR HEAT PROBLEM IS A STOPPED UP HEATER CORES.THE STOP LEAK STOP ITS HEAT.THE STOP LEAK HAS STOPPED OR PLUGGED YOUR HEATER CORE SO COOLANT CANT PASS THROUGH IT.YOU GOING HAVE TO FIX RADIATOR LEAK AND REPLACE HEATER CORE TO GET HEAT AGAIN.

Posted on Feb 01, 2010

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SOURCE: my vehicle blows cold air all the time i have

if you replaced the core then there is no way the temperature blender flap is stuck open? it is possible that you have a big air bubble in the core and there is nothing circulating in it? it does sit higher than the engine, if so burp it out. did you happen to video the core removal/install process and put it on youtube?

Posted on Nov 25, 2010

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My yruck only blows cold air wont blow warm


Could be the air flaps of the heater unit are set incorrectly or not working at all or possibly the heater radiator is blocked or semi-blocked or perhaps there is something wrong with the heater hoses or the heater water valve if one is fitted.

These things need checking before a cause can be established.

I am sometimes called upon to flush out a heater radiator. Sometimes it works and sometimes it doesn't and sometimes it causes a leak and the heater radiator must be replaced. Not an easy job on many vehicles made in the last couple of decades..

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check and make sure the radiator is full of antifreeze take off the radiator cap and top off the radiator then take your hand and cover the hole where the cap goes and squeeze the top radiator hose a few times to help it go down that way if there is a air pocket somewhere it will help push it out when you thank your done top off again and replace the cap and try

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Heater blows cold air in 1991 ford explorer


Check for blown head gasket if there is steam coming from the exhaust,also check that the theremostat is opening.

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2002 taurus, power windows all stopped working at once along with lighted window switches. Drivers window stuck down. Relay was hot! Also heater blows cool air, started doing this after I added radiator...


LOOK FOR BLOWN WINDOW CIRCUIT BREAKER.YOU HAVE A SHORT IN WINDOW SWITCH OR BAD WINDOW ELECTRIC MOTOR.YOUR HEAT PROBLEM IS A STOPPED UP HEATER CORES.THE STOP LEAK STOP ITS HEAT.THE STOP LEAK HAS STOPPED OR PLUGGED YOUR HEATER CORE SO COOLANT CANT PASS THROUGH IT.YOU GOING HAVE TO FIX RADIATOR LEAK AND REPLACE HEATER CORE TO GET HEAT AGAIN.

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2001 Daewoo Nubria heater stopped working and is now overheating


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Jan 10, 2010 | 2001 Daewoo Nubira

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When my car warms up the heater blows out warm but gradually gets cooler and cooler after about 10 min. It will stay cold ( about three degrees above outside temp.) It does this on cold days. And after you...


It may be the valve that controls the amount of water entering heating core but I'm wondering if your engine thermostat isn't stuck open. This is what controls the coolant temperature in your engine. It closes off while engine is off. It will remain closed after you start your car until the water warms to a certain temperature then it starts to open enough to keep your car at the proper operating temperature. If it stick open then it will take a lot longer for the engine to heat up and on smaller cars might never heat up enough for your heater. If you live in very cold climates such as where I live in Wyoming, we have to change to a higher degree thermostat so we have a good heater when it's 30 below zero.

Be very cautious here but one way you can check this is to put a piece of cardboard in front of your radiator and stop the airflow that cools your engine coolant. THIS WILL CAUSE YOUR CAR TO HEAT UP AND CAN CAUSE ENGINE DAMAGE IF IT OVERHEATS. Don't completely cover the radiator but if your heater warms up when you put the cardboard in front of radiator it's a good sign that your thermostat is stuck open and needs to be replaced.

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I think you are on top of your problem,,you dont need any one elses advice.
Complete rebuild of the cooling and heating system,, simple.

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Heater on 2001 ford taurus blows warm air then turns cold


the heater core is probably bad and costs about 45.00 at the auto parts store.

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Heater blowing cold on 2005 Nissan Xterra


I live in Alaska and have had the same problem i just added more coolent to the radiator and it warmed up i installed a block heater and i leaked a bit and the coolent level got low and i would have no heat. I tryed to fill just the coolent resivoir and that dident work so i filled the radiator pumb full and that worked!! Hope this helps.

Nov 17, 2008 | 2006 Nissan Xterra

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