Either blower temperature motor is not working to turn the temperature door. or thermistat is stuck or itake gasket is gone. keep fingers crossed that it isn't the last thing
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If you are talking about the belt for the ac compressor, yes the heater should still work. If the blower is not working, you will need to have the blower motor checked for voltage and ground.
The next time the blower fan doesn't want to come on whack it with a wooden hammer handle, if it starts you need to replace the blower motor the armature brushes are defective or sticking.
Geraldine,I would venture that the resistor board,usually mounted near the blower motor,has almost gone all the way bad. Have someone check it. Of course,it could be the blower speed selector switch,but probably not. don-ohio (:^)
{: ) If the front a/c and heater is working fine, that's good. At least the problem can be isolated on the rear HVAC circuits only.
Check first the RR HVAC fuse 30amp at the underhood fuseblock and the IGN 3 fuse 10amp at the IP fuseblock. If you found them good, then you can begin diagnosing the blower circuits wirings and connectors.
A faulty blower definitely will not give any output. If it doesn't spin for some reason, rear a/c or heating cannot be circulated.
A faulty blower resistor or speed control processor can also cause a zero air output. Sometimes, the blower may only work at certain speeds only.
A faulty rear HVAC control switch may not give the proper signals to the blower resistor or speed controller, and in turn will render the blower motor disabled.
Sometimes it can be a terminal connector being loose or burnt. However, the most usual cause for this type of problem is a faulty blower resistor.
So it works with a/c but doesn/t work with heat. Is that what your saying?
Or it blows cold air on heat selection?
If it blows but only blows cold air on heat selection
check out the following items:
temperature selector switch
blend door actuator and motor.
Here are a list of items to check out or have a shop inspect if it doesn't blow anything at all.
a) on/off switch
b) relay
c wiring
d) resistors
e) blower motor
×