1990 Oldsmobile Ciera loud noise with heater

JENJKS

MEMBER
1990 OLDSMOBILE CIERA
6 CYL
FWD
AUTOMATIC
211,000 MILES

1990 Cutlass Ceira. Just this winter my heater, possibly even just fan, has been making a horrible noise when it starts, car slows down or goes over a bump, when you turn the speed down, or when you turn it off. It sounds something simliar to a belt slipping, or maybe the blower blades rubbing on the housing. We run it on high or off to reduce the noise and hopefully reduce the life of the heater. What do you think? By the way it does blow hot air, just really freaking noisy.

5 Replies

MERLIN2021

MECHANIC
17,250 POSTS

Probably need a new blower motor, If I understand you, the noise only happens with the blower on? Try it with the engine off. Any noise with blower on? You seem to be describing two problems, if quiet with car off, the serpentine belt and tensioner need replacing. Possibly the A/C compressor or pulley bearing.

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Saturday, January 24th, 2009 AT 8:43 AM

JENJKS

MEMBER
7 POSTS

I have tried it with the ignition switch on-engine off- and it is still noisy. Does that mean the problem lies in the blower motor needing replacement? Or is it yet something else? Thank you for your help :)

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Saturday, January 24th, 2009 AT 7:43 PM

MERLIN2021

MECHANIC
17,250 POSTS

Yes probably the blower motoer.

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Thursday, January 29th, 2009 AT 11:53 AM

JENJKS

MEMBER
7 POSTS

Thank you so very much, I went to get a new one today and was sold the wrong kind. I need the wheel, and with your help we'll have heat soon. THANK YOU! If I could afford it I would have left a few bucks for a donation, I really appreciate your help.

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Friday, January 30th, 2009 AT 4:58 AM

MERLIN2021