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Noisey Pulley?


dashhho

Active Member
Joined
Sep 12, 2020
Messages
125
Reaction score
51
Points
28
Location
Canada
Vehicle Year
2005
Make / Model
Mazda B4000 SE
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
My 2005 with a 4.0L SOHC has a noisey pulley when I first engage the AC compressor. Starting the truck with the climate control on "OFF" and then turning it to AC or anything that engages the clutch on the AC I get a good growling belt noise of some sort for approx 2secs which I believe is from the AC compressor pulley. It only happens when the truck is stone cold, after the first noise it never happens. Anyone have any tips? I'm guessing it could be the power steering pump pulley possibly also?
 


franklin2

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Location
Virginia
Vehicle Year
1984
Make / Model
Bronco II
Transmission
Manual
Your belt may be very old and glazed. Also check the belt tensioner that it is tightening the belt enough. If you just changed the belt recently and used a cheap brand, you could try a new one with a more well known brand like Dayco.
 

dashhho

Active Member
Joined
Sep 12, 2020
Messages
125
Reaction score
51
Points
28
Location
Canada
Vehicle Year
2005
Make / Model
Mazda B4000 SE
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
I thought this also Franklin. I put a new ac delco belt on and a new tensioner, the idler pulley is new also. I had thought maybe the pulley is glazed?
 

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