Car Questions
RepairPal is your advocate for car care advice and guidance

Vibrating Noise While Heat Is On?

(2001 Mazda Protege)
in Millersville, PA on January 18, 2011
The fan belt was tightened and the oil was changed. On the way home from picking my car up, this obnoxious vibrating sound started when I turned the heat on. When I turned it off, it stopped. It sounds like its coming from the passenger side. My car did not do this before I dropped if off for these two things. Help... It's driving me NUTS
Displaying 1 answers & 0 comments
Popular Answer
on January 18, 2011
The most likely source of your concern is the heater fan blower out of balance. This is commonly due to something foreign dropping into the "squirrel cage" fan blades such a parking stubs, pencils or an occasional french fry. We have seen blowers fail on there own without anything in them though. Most likely the entire blower motor will have to be repalced unfortunely.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I've replaced front tires, rebalanced all 4 tires, replaced lower ball joints and struts. Any ideas?
This is happening while rolling on smooth pavement. It seems to come from the rear quarter and more from the Driver s...
Didn't find what you were looking for?