Squeelin' Like A Pig
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Joined: Nov 2004
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Squeelin' Like A Pig
Here's A Good One For Ya!! Several Months Ago, I Replaced The Serpentine Belt In My 93 Bronco (302 Auto). Shortly After That, Every Time It Rains Or Is Very Humid Outside, There Is A Very Annoying Squeal From That Area. At First I Thought That My Water Pump Was Going Out Or The Idler Pulley And/or Tensioner Pulley Were Going Bad. Well I Changed Out Both Pulleys Which Made No Difference. Heres The Best Part -- When I Was At The Auto Parts Store The Gut Behind The Counter Noticed That I Bought These Pulleys And Said "ya Got A Squeal Don't Ya". Of Course I Told Him The Story And He Said That He Replaced Everything On His Including The Air Pump And Alternator And You Will Never Get Rid Of The Noise. By Changing The Belt, He Said That I Upset The Apple Cart. I Find This Extremely Hard To Believe. Can Anyone Help!! Thanks, Alex
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I Appreciate The Response. I Have Tried Two Different Belts, Gates Being One Of Them. I Thought That Buying An Expensive One Would Do The Trick But That Wasn't The Case. I Thought About The Water Pump Or Alternator Starting To Go Bad And Make The Noise But, Again, It Goes Back To The Parts Guy Grinning At Me Saying It Can't Be Fixed And The Fact That It Only Makes The Noise When It's Wet Outside. A Failing Part Would Make The Noise Intermittantly All The Time Right??
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Joined: Jun 2003
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From: WILMINGTON,N.C.
Mine does the same thing, replace the belt problem goes away for a while then here comes the squeal again. Remedy I just replace the belt, good for about 6 months more. I have replaced the tensioner..made no difference. Checked all pulleys all were ok. You can quieten it down by spraying the belt down with silicone spray will stop it for about a week. I tried probably 4 different manufacturers of belts but it comes back so now I just replace the belt about every 5 or 6 months.
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Cargo Master
Joined: Aug 2004
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From: Lynnwood, WA
I just sprayed the belt with silicone lube, and to much of my surprise the squel has gone!!
Will see how long it stays that way. This means that's definitely not any of the bearings (i.e. alternator or tensioner) are the source, even though the squel appears to come from their general direction. Now I'm thinking this may be caused by a too smooth surface on some pulley (the belt will stick to it a bit) so if the squel comes back, I'll probably rough up the suspected surfaces a bit.
Will see how long it stays that way. This means that's definitely not any of the bearings (i.e. alternator or tensioner) are the source, even though the squel appears to come from their general direction. Now I'm thinking this may be caused by a too smooth surface on some pulley (the belt will stick to it a bit) so if the squel comes back, I'll probably rough up the suspected surfaces a bit.
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Senior User
Joined: Nov 2004
Posts: 234
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From: Mount Tremper, New York
i have the same squeal in my '91, and it drives me nuts!! mostly because i got used to my old f150, and whenever there was a foreign noise, i thought it was the end of my truck. i just wish i could find a way to make the squeak go away
Freshman User
Joined: Dec 2004
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I'm in the same boat. The noises start and I start thinking that the bearings in one of the pulleys are going out. Then I remember that I can buy a $15 belt and the squeal will go away. It's very disturbing how old belts make noises that sound like bearings on their way out....
Cargo Master
Joined: Aug 2004
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From: Lynnwood, WA
The one I used is "Rawn Silicone Lube 37008" from Fry's; $4.99 for a 10 oz can, but one can probably get an equivalent lube for less elsewhere. Probably much cheaper than a new belt every few months.
Cargo Master
Joined: Nov 2003
Posts: 2,000
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From: North Dakota
There is a thing called belt dressing, I even have a bottle of it in the garage. It is supposed to quite the belt down. A sqeaky belt is usually pretty common in humid places.Very rarley do we ever get alot of humidity here in Vegas but once in a blue moon when it goes over 80% my belt will sqeak at idle.
