Fixing squeel/vibration from rear air - May 01st 2018 9:43 am
Factory rear-air unit in my van. Since I bought it, the rear air blower only comes on with the switch on the high/max setting. Usually it sequels like maybe bearings are bad or the fan impeller is rubbing something or imbalanced and vibrating.
Previous owner said he didn't know what the issue was but he would just switch it off and on a few times until it starts up without the bad noise. This works O.K. sometimes but eventually seems to start running bad again. I will get it running smooth (by switching off and on ) and then turn the radio up loud, then when i turn the radio down I notice the rear blower is acting up again. Lately I can't get it to smooth out by working the switch.
Thoughts on diagnosing?
demonstration of symptom;
Previous owner said he didn't know what the issue was but he would just switch it off and on a few times until it starts up without the bad noise. This works O.K. sometimes but eventually seems to start running bad again. I will get it running smooth (by switching off and on ) and then turn the radio up loud, then when i turn the radio down I notice the rear blower is acting up again. Lately I can't get it to smooth out by working the switch.
Thoughts on diagnosing?
demonstration of symptom;