Squeaking pulley? when it rains...driving me crazy!!
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 2,078
Likes: 0
From: Frisco TX
Squeaking pulley? when it rains...driving me crazy!!
When it rains, a squeak starts under my hood and will last for 3-4 weeks before it goes away. It won't squeak unless it rains again. I took the car in twice...first time got a new belt...the second time they said they need to adjust the tensioner...neither helped. My logic says maybe a ball bearing on a pulley? Can I oil it? My car is a '97 with 70K miles. Hmmmm. Thanks for any help.
Drifting
Joined: Dec 2005
Posts: 1,720
Likes: 3
From: East Hampton CT
I've had several GM vehicles that did this. Its the seals on the belt tensioner or idler pulley. My wifes 1997 S10 Blazer, 2004 Trailblazer, and my 1994 Camaro all did it at one point, esp with humid weather.
Thread Starter
Melting Slicks
Joined: Sep 2003
Posts: 2,078
Likes: 0
From: Frisco TX
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
squeak
I have it too. There's a TSB out on the IDLER pully and think thats it.
GM Manual says to remove accessory belt to see if it is the AC belt and pullly or acc then to rotate each pully by hand to see if they turn freely. Bet it is the IDLER.
BIGHANK
GM Manual says to remove accessory belt to see if it is the AC belt and pullly or acc then to rotate each pully by hand to see if they turn freely. Bet it is the IDLER.
BIGHANK
Intermediate
Joined: May 2006
Posts: 30
Likes: 0
From: Livingston New Jersey
my belts squeaked too during humid and damp weather. to rule out pullys and tensioners, somebody on this forum said to spray water on the belts while the engine is running. if the squeak stops for a few seconds and comes back, then its just the belts. do one of them at a time by the way to isolate which belt it is. I did this test myself and sure enough, it was just the long serpentine belt. I put the Good Year Gatorback on and it has been peaceful since!
Drifting
Joined: Dec 2005
Posts: 1,720
Likes: 3
From: East Hampton CT
We had the s10 blazer one replaced under the extended warranty we had, and the Trailblazer did it from day one. Both still squeak when its humid out or under various other conditions. Chalk it up to a poor seal design. They make noise....one thing I haven't seen the general fix in the past several years.
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Instructor
Joined: Sep 2005
Posts: 222
Likes: 1
From: Brenham Texas
Squeal
Mine does the same about once a year now.
I use silcone spray and lube lightly the big pulley on the bottom of the engine. ( Harnmonic balancer ) while it is running.
Be careful and stand on the passenger side of the car and spray the balancer.
This carries the lube all over the system.
Now I know some will say to replace the belts ect.
Mine are new and had been replaced when I purchased the car.
Been doing this for 3 years without a problem except the noise stops.
Hope that helps.
I use silcone spray and lube lightly the big pulley on the bottom of the engine. ( Harnmonic balancer ) while it is running.
Be careful and stand on the passenger side of the car and spray the balancer.
This carries the lube all over the system.
Now I know some will say to replace the belts ect.
Mine are new and had been replaced when I purchased the car.
Been doing this for 3 years without a problem except the noise stops.
Hope that helps.
Drifting
Joined: Nov 2005
Posts: 1,801
Likes: 0
From: Peterborough"I'd rather be topless than all couped up" Ontario
St. Jude Donor '07-'08-'09-'10
caution
after my mods last winter Had a pulley squeal keep it lubed every couple of weeks
But I am putting a new hood liner in painted Don't want to be shooting crap all over it
so I'm gonna change Belt (again)
new AC pulley new tensioners alt pulley and GOD help that thing it it still makes one little peep
But I am putting a new hood liner in painted Don't want to be shooting crap all over it
so I'm gonna change Belt (again)
new AC pulley new tensioners alt pulley and GOD help that thing it it still makes one little peep
