Squeeking acceleration in damp weather

Squeeking acceleration in damp weather

Postby miniVan [OP] » September 9th 2013, 1:29am

My van is squeaking when I accelerate after it was raining or if it is damp outside. Even if the van is dry from the day before, and it was sitting outside in the rain, when I press on the accelerator I hear a high pitch squeel increasing with rpm, but it's not too loud. I had a belt tensioner and belt replaced a few months ago when it was squealing all the time, but after a few months the problem returned and it squeals in damp weather mostly. For some reason, it won't squeel when I turn the ac on.

Do you guys know what this could be?

97 safari van.
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Re: Squeeking acceleration in damp weather

Postby chevymaher » September 9th 2013, 1:39am

Sounds like the belt.
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Re: Squeeking acceleration in damp weather

Postby astroman97 » September 9th 2013, 2:03am

lol I have the exact same problem on all three of vans and living in Vancouver (like Seattle for my American brethren) it tends to rain rather often. I suspected the tensioner as well though never replaced it my sqweel will go away after the van warms up..but ya makes me wonder maybe a new belt though not sure why even if the van is dry it does it after a rain. :shrug:
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Re: Squeeking acceleration in damp weather

Postby chevymaher » September 9th 2013, 2:13am

Serpentine belts are bad for it. I had a new belt it squeeled and the old torn one didn't go figure. Best way to make it stop. Make sure anti-freeze isnt getting on it. That makes them do it the worst.
PB Blaster sprayed into the grooves stops it. Do it a few times.
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Re: Squeeking acceleration in damp weather

Postby thegreenmachine » September 9th 2013, 3:08am

Take the belt off and flip it. Re install. Might go away.

Taking a wire brush to the pulleys cleans any rubber debris from the grooves.

Do not, under any circumstances use belt dressing.


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Re: Squeeking acceleration in damp weather

Postby thegreenmachine » September 9th 2013, 3:41am

What the heck happened to my post?^^^^^^^^^


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Re: Squeeking acceleration in damp weather

Postby deleteitall » September 11th 2013, 1:19am

Never thought about flippin the belt. Like rotating the tires! Does it give better wear or make it last longer? How bout flip the belt every 10k miles? :shock:
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Re: Squeeking acceleration in damp weather

Postby chevymaher » September 11th 2013, 1:24am

:shrug: Once mine quit squeaking I never did anything. It been on there for 70 thousand miles quiet as a mouse.
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