Question about Cars & Trucks
Heater blowing cold air repaired heator resistor card but still blowing cold air could it be heater blower motor or heater core?
Posted by Anonymous on
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Posted on Jan 02, 2017
if you locate the blower motor the rester is the wire that atachec to blower motor fallow wire till you find a circuit bord this is ur resistor
Posted on Dec 06, 2008
the resistor is behind your glove box. open the box and push in the sides to release it and let it hang down...the resistor is right there. I didn't try to replace it, a friend did it, but the part was under $20.
Posted on Feb 01, 2009
If the blower moter only works on hi speed it is the blower motor resistor that is bad. The blower motor resistor is located under the passenger side of the dash next to the blower motor. It is not necessary to remove the blower motor to change the resistor.
Posted on May 13, 2009
this problem is caused by a part called the "temperature control blend door actuater motor" this litttle motor drive moves the door that diverts air over the heater core or AC evaporator core, when it fails it almost alwys fails in the AC only position, u will need to have the motor drive replaced
Posted on Oct 16, 2009
SOURCE: 98 bonneville , blower only
This is usually caused by a control door inside the housing for the heater. Sometimes pens or other obstacles go down the defroster vents and block the doors. Lay on the floorboard while someone controls the heat and vent controls. You should be able to see the arms controlling the vents and heat. You may have to remove the lower dash covers to gain access to see these controls. Also check to see if there are any engine vacuum leaks. The heater and vent controls are ran by vacuum sometimes.
Posted on Dec 29, 2010
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