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Old 10-05-2012, 02:05 PM   #1
Scooby Newbie
Member#: 332024
Join Date: Sep 2012
Impreza WRX Belt Squeal on Downshift and normal take off

Since it has gotten colder in my area, I know your belts would squeal due to frost. But in my case after being warmed up and driven about 3 miles to work and I downshift, and one of my belts begins to squeal. I do have the Perrin Lightweight crank pulley. It was done correctly I did it 3 months ago, and replaced my belts along with the small A/C tensioner pulley as well. Never had any sort of sounds until 2 weeks ago and its a squealer for about 4-10 seconds at a time even with the heater/blower off. I've got the alternator tensioner adjuster as far as it would go but the belt tension is still within reason not loose not super-tight. And in some instances it does it on normal Daily Driving take off's.
Any insight is appreciated.
Lechurus is offline   Reply With Quote
Old 10-05-2012, 07:38 PM   #2
Scooby Newbie
Member#: 184209
Join Date: Jul 2008

Not sure if it will be too small or not... but you could try getting a size shorter belt to maybe get a bit more tension on it if the tensioner bolt is maxed out. You definitely don't want to over-tighten the belt though. A can of belt dressing is a band-aid fix, but it will temporarily relieve the squealing. I actually made a bracket to mount an idler pulley between the alternator and crank to put more belt wrap on the alternator pulley on my car. This was the only way I could fully eliminate the belt squealing on my wrx in cold weather.
skanitz1 is offline   Reply With Quote
Old 10-09-2012, 01:48 PM   #3
Scooby Newbie
Member#: 332024
Join Date: Sep 2012
Impreza WRX

Ok, I will try that.
Lechurus is offline   Reply With Quote

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