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2000 jeep no fan blower air flow?
Okay basically i have a problem is my 2000 Jeep Grand Cherokee with the straight I6 motor and 169XXX miles well i have no blower settings at all the blower fan for the heat and ac works i can feel very little air coming out the defrost vents but when i switch it to floor nothing comes out or face/floor nothing or face/defrost i only feel a little going to the windshield defrost. Its not my fan motor because it changes speed as i change the fan speed my problem is i just have no directional control of the air flow and i have no idea why? We checked i have no vacuum leaks so now what? all i know is before it stopped working i heard what sounded like something breaking and being tossed around inside the dash. Does anyone know what the problem may be? We thought it was a vacuum leak since i just had my radiator replaced but nope i have vacuum to all lines. I hope its not my blend doors????
4 Answers
- ?Lv 77 years agoFavorite Answer
When you eliminate all other possibilities, then what is left HAS to be the problem... Sounds to me that you have eliminated everything EXCEPT the blend doors inside the heater air box. Good luck with that!
- techpaddleLv 57 years ago
Both the blend and mode doors are electrically controlled on these jeeps. I think what you heard was the blend door breaking off. These can be easily replaced thru the glove box opening in the dash. It is such a common problem that aftermarket companies are making the parts for them. (Dorman, p/n 604046 door,
p/n 406044 actuator motor)
- ?Lv 67 years ago
Blower fan motor not bad means the controls to the insides aren't attached properly anymore, In the old days they used levers and you could see the wires pull vents open and shut. Looks like you're gonna need a mechanic.
You might have to take that dash apart! Good luck!
- Anonymous7 years ago
The doors that direct the airflow are vacuum controlled .
I'd suggest inspecting the series of small vacuum lines that control them .
As a test you could open them manually to test for air flow .
