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        General >> Problems >> Heater noise
        
(Message started by: pinto on Dec 29^th, 2009, 8:00pm)

Title: Heater noise
Post by pinto on Dec 29^th, 2009, 8:00pm

My ultima has recently developed a noise from the heater area of the dash when the diverter is switched to demist (and to a slightly lesser extent on all the positions if the aircon is switched on). Its a fair vibration too - you can feel it through the transmission selector !

Best way to describe it is like something has got into the fan and is vibrating like a spokey thing - but the odd thing is that the noise/vibration increases with engine revs ???

my first impression is a fault with the blower, but the revving thing makes me worry it could be the electronic clutch on the aircon compressor seized, or maybe the compressor itself ?

Title: Re: Heater noise
Post by Stixy on Dec 29^th, 2009, 8:02pm

Does it do it when the selector is in Park or just when driving ?

Title: Re: Heater noise
Post by pinto on Dec 29^th, 2009, 8:06pm

Both

Title: Re: Heater noise
Post by Stixy on Dec 29^th, 2009, 8:10pm

Take the belt off the a/c compressor and see if it still does it