- 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.
change the thermostat, sounds like it could stuck open and wont allow the engine reach operating temp, also test the constant control relay module located to the right of the battery as your facing the front of the car, also test coolant temp switch it might be defective and producing a high voltage that would cause the fans to constantly operate no matter the temp. Hope this helps
There sounds like there's a problem with the mode doors.I've seen lots of doors break and it usually means dash removal.first check the switch as it may be the problem.if its vacuum operated it could be defaulted to defrost if its a broken line.
98 olds. bravada. alternator and battery played out, so i installed both new ones easy money.the problem it created was my a/c damper door constantly opens and closes no matter what you turn the controls to. its working as far as the a/c but the air mix door want stay in the position it needs to stay in to keep getting cold air. i have checked every thing i possibly can. just so you know all was working perfect untill i had to put the battery and alternator on it. please help my truck gas mileage sucks,and the bravada is tolerable but cant its hot in va.
No the switch is probably ok. The problem is most likely the door actuator motor. It is a small electric motor that opens and close the the correct door to direct the air in the ac/heating ducts. These motors take place of the old cables that did the same job.
You need to have the temperature valve actuator replaced. It's a dealer only part on top of a huge labor fee (about 600). I've been just opening my windows in the winter when it gets too hot... but with spring/summer coming I will have to have it rigged to constantly blowing cool air (and bring a sweater!). Good luck.
none of the above, the vent door is stuck inthe open position most probable cause is vacum leak look closer to your fire wall and you will see a very thin vacum hose going into the vehice which seems to be unpluged!!