Why is my aux/serpentine belt squeaking?
Discussion
An intermittent squeak is driving me insane....Sometimes it won't squeak other times it will and then it will go away afterwards...It's not your typical deafening screech that an aux/serpentine belt would make, but more like a quiet whistle and can only really be heard when it's idling if it's making the noise at all. Also, on cold starts there's a strange scratching sound coming from the same area, timing belt/aux belt area and I can't figure out which. It makes the car sound like an old Pushrod motor and only happens on stone cold starts (after many hours/overnight) and disappears after minutes of driving, then won't do it again until next morning or many hours...It's very hard to get it to a garage to diagnose as by the time I've driven to a garage it will have stopped, belt however sometimes squeaks and others it wont. I have a video of the scratching/scraping sound, as I said it's coming from the area the aux and timing belt are so I don't know if it's a bearing (surely it would make the noise all the time though not just when cold?) here it is, any help would be greatly appreciated http://vid938.photobucket.com/albums/ad226/JoeyBoy...
Is it old, does it need replacing, these do wear and so do the pulleys eventually. Could be a bearing too, not the belt itself. Dry bearings tend to squeak.
Noises after cold startup indicate that the load the alternator is creating is causing these. Could be related to the above.
Will need to be looked at, try a piece of plastic pipe used as a stethoscope of sorts which could help you id where the sound is actually coming from far more precisely. Be careful though, nasty things pulleys...
Noises after cold startup indicate that the load the alternator is creating is causing these. Could be related to the above.
Will need to be looked at, try a piece of plastic pipe used as a stethoscope of sorts which could help you id where the sound is actually coming from far more precisely. Be careful though, nasty things pulleys...
996TT02 said:
Is it old, does it need replacing, these do wear and so do the pulleys eventually. Could be a bearing too, not the belt itself. Dry bearings tend to squeak.
Noises after cold startup indicate that the load the alternator is creating is causing these. Could be related to the above.
Will need to be looked at, try a piece of plastic pipe used as a stethoscope of sorts which could help you id where the sound is actually coming from far more precisely. Be careful though, nasty things pulleys...
Not had the car long, but found it on a forum from last year and bloke said in the for sale advert belts were all changed 2000 miles ago at time of advertisement, done about 11k since then, non genuine timing belt thoughNoises after cold startup indicate that the load the alternator is creating is causing these. Could be related to the above.
Will need to be looked at, try a piece of plastic pipe used as a stethoscope of sorts which could help you id where the sound is actually coming from far more precisely. Be careful though, nasty things pulleys...
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