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MY HEATING AND AIR CONDITIONING DOESN'T SEEM TO BLOW OUT AS HARD AS IT ONCE DID

AFTER THE HEATER CORE WAS REPLACED IN MY 1991 THUNDERBIRD IT DOESN'T BLOW OUT AS HARD AS IT ONCE DID

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  • Contributor
  • 14 Answers

Is the fan working in all speeds?could be a fan resistor if not or cage on blower motor restricted some how thats what i would check first

Posted on Jan 15, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: heater core replacement

OK, Ifound the problem with mine. Dont unplug your air dryer. I checked the 2 hoses coming out from the heater core and still one was hot and the other not hot. The top one comes from the radiator fill tank and the bottom one comes out of the core and goes around to the front and into the water pump. I disconnected both close to the core and could runwater through both directions so upon further examination, I disconnected the hose at the water pump and no water flow. The hose was plugged up with something. Once I cleared it with a hanger and reconnected it I had water flowing through the core and great heat. Hope this is your problem too as it is aneasy fix

Posted on Oct 23, 2008

chazman05
  • 48 Answers

SOURCE: Heat lack of

9 times out of 10 on this old of vehicle its the heater core. If your car temp gauge is working and the car is heating up fine and the blower works then it is most likely your heater core. Not sure how hard it is on that car. SOme times it just under the dash takes about 30 mins but some cars you have to pull the dash out. The part alone is cheap. I would try logging onto autozone.com put in your car find the part (heater core) then look at the how to change section of auto zone.

Goodluck.

Posted on Dec 12, 2008

  • 651 Answers

SOURCE: heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Posted on Jan 04, 2009

  • 8 Answers

SOURCE: heater blows cold air, replaced thermostat &

try to back flush the heater core. and if that dont work check the blend door it see if it is working.

Posted on Oct 15, 2009

  • 432 Answers

SOURCE: 1998 chevy k1500 pickup blows cold air out of heat

Heater control valve(mixing valve) or motor on your blend door.

Posted on Jan 19, 2010

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