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1982-1994 Chevy Cavaliers

What causes the air not to blow out of the air cond or the heater sometimes and then sometimes the blower works fine?

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2007-10-08 17:27:06
2007-10-08 17:27:06

Loose connection or blower motor?

Bad blower motor?

Loose fuse?

Bad fan switch?

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Related Questions


If a 2000 Grand Am sometimes has the heater blower working and sometimes it won't, the problem could be with the heater relay switch. The heater relay switch lets the heater blower know when to come on and when to go off. In most vehicles this switch is behind the glove compartment. This part sometimes gets corroded from condensation in this area.



The blower may simply have burned out. If the blower is out then the heater probably still works.


it is either a bad switch on your controls, or your blower motor is going out




Depends on what you mean by heater will not work. If the blower motor will not work, it can be a blown fuse, bad blower motor, bad blower motor switch, or a defective blower motor resistor pack. If you mean that the blower motor works but there is no heat, then it can be a clogged heater core, thermostat stuck open, or defective heater control valve.


The blower motor speed resistor is burned out.


The most likely cause is a bad blower motor resistor.



ABS and blower motor are unrelated.To fix blower motor, read this:http://www.ricksfreeautorepairadvice.com/diagnostics/blower-only-works-on-high-speed



Does the blower work? If not the problem is likely the fuse or a failed blower motor. If it works but blows cold air you probably have a broken engine coolant thermostat. Have you checked your coolant level?



First thing to check would be all your connections..make sure you have a good clean ground... if all your connections are good then i would say your blower motor is overheating and shuting down(replace it)


my 1999 winstar was doing this and it was the blend door


I just need the location of the heater & blower unit of the 2001 Nissan Xtera. E-mail flores-rene@sbcglobal.net thank you



If you are saying the Blower Motor only works on high, then your problem is a defective Blower Motor Resistor Pack. Replace it.


The blower motor works on only one speed. The blower motor resitor pack is defective and needs to be replaced. It is located on the blower housing in the engine compartment just below the blower motor.


Normally when a heater blower motor only works on the High setting, it is caused by a defective Blower Motor Resistor Pack. The fix is to, Replace it. In very rare instances it can also be a defective blower motor speed control switch, but rarely.



Could be, heater blower motor has failed. blower motor fuse is burned out. blower motor speed resistor is burned out. blower motor switch is bad. or, if the blower motor works but you have no heat it could be, cooling system is low on coolant. thermostat is stuck open. heater core is plugged. temp blend door actuator is faulty.



if the blower motor works most likely heater core is bad. need more info



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