At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- 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.
What year and make. Could be the diverter door not working properly and not allowing the door to move to the heat side. This is usually located near the heater core.
That noise is the heater and AC air temperature control electric blend door motor trying to move a duct door that is sticking due to heat warping. You will need to remove the entire dash assembly and replace the blend door. This door is located between the AC core and the heater core and "blends" the air from each (hot from heater core and cold from AC core) to give the desired air temperature,.
Most vehicles are vacuum actuated heat and A/C under dash and the blend door on your is staying closed and covering the heater core so no heat can enter. The blend door vacuum line is most likely crimped closed or disconnected. Look on top of the heater box for said actuator and the door hinge to check it. You may be able to see it even.
The sliding switch on the console is stuck in the cold position and the knob is pulled off. Use pliers to jiggle the switch as best you can. Feel under the center console and you probably will find the cable that is hooked up to the flapper. You'll know because when you jiggle the cold/heater switch at the upper console, the cable will move slightly. At the hookup of the cable to the flapper down under the console (passenger side) try to work the flapper loose to the open (or close) position. At the same time work the sliding switch (with pliers). The flapper will come loose and function properly. Try not to knock of the AC button like I did in the process. It flew off some where under the passenger seat. I'll find it sometime before summer. Ha.
replacing a blend door actuator is a tedious job. You have to remove the steering column taking xtra careful for the wirings. Complete removal of the dashboard, remove the instr. cluster, radio , glove box.Remove the console box, discharge the freon ,disconnect the heater hoses, ac hoses. After removing the dash you can gain access of the ac/heater phlenum. Remove the blend door actutor.bolts and screws are sometimes in a concealed location so xtra patience is needed.
this problem is caused by a defective air temp control blend door motor, this door and actuator motor is located inside the dash between the heater core and the AC evaporator core, it shifts airflow through the heater core or the AC core or mixes or blends the two for the desired temp at the outlets, the motor will have to be replaced. This is a very common issue.
×