2000 Mazda Protege high pitch sqealing

TREVORHOPPER

MEMBER
2000 MAZDA PROTEGE
4 CYL
FWD
AUTOMATIC
120,000 MILES

My car has been making a squealing noise when I either turn on the heater or AC, usually when I am stopped or just sarting to accelerate. It also happens in the morning or when it is raining. When I hear the squealing I can turn off the heater or AC and the squealing stops. A lot of the time it is when I turn on the defrost in the morning on my way to work. Any suggestion as to what this may be?

Friday, December 21st, 2007 AT 12:20 PM

3 Replies

MERLIN2021

MECHANIC
17,250 POSTS

If it's comming from inside the car, it's the heater blower motor, if under the hood, The a/c pulley bearing or the serpentine belt(fan) and tensioner pulley

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Friday, December 21st, 2007 AT 1:13 PM

TREVORHOPPER

MEMBER
2 POSTS

Thanks for the response. I am lloking at taking my car in to fix this.

It is coming from under the hood as the fan goes on when the heater is on so I am gussing it is the serpentine belt and tensioner pulley.

It is a 2000 mazda protege 1.6L with 122,000 miles on it. I did have the timing belt service done on the car, could this have something to do with the noise?

If I get it fixed what is a price range for the parts and service?

Thanks

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Thursday, December 27th, 2007 AT 11:58 AM

MERLIN2021

MECHANIC
17,250 POSTS

Doubtful that the timing belt would make the noise, they have teeth, and don't slip. Serp belts are ribbed and can slip. Test the a/c clutch and bearing while you do the serp and tensioner.

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Thursday, December 27th, 2007 AT 2:16 PM