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Weird engine Squeal help?
by
parkdog
on 03 Dec, 2009 21:46
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i just changed all my belts on my 1.6td jetta but it still makes the noise that an old or loose belt would the alternater was rebuilt before i got the car. It does it sometimes when i make a sharp turn. also when im driving if i psh the clutch in it will stop any suggestions?
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#1
by
rabbitman
on 03 Dec, 2009 22:47
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also when im driving if i psh the clutch in it will stop any suggestions?
Sounds like something tranny related.
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#2
by
Smokey Eddy
on 04 Dec, 2009 02:32
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yeah if you hadn't said the part about the clutch i was going to say ... your battery could be dead and the load on your alternator is causing the belt to slide and make a squeal OR if the plastic cover has come loose and it's rubbing on the accessory belt that also can cause squealing.
Also, if you put the timing belt tensioner on backwards it will offeset the belt and it will squeal but i don't think that's the case.
Is there oil in the transmission?
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#3
by
truckoSaurus08
on 04 Dec, 2009 05:57
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You migh have worn pulleys.
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#4
by
8v-of-fury
on 04 Dec, 2009 06:09
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You migh have worn pulleys.
take off your pulleys and rough them up with a wire wheel. When they go smooth they have trouble getting traction on belts and thus they slip and squeal.
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#5
by
clbanman
on 04 Dec, 2009 09:16
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If it is more or only noticeable in 5th gear then I would say it is definitely transmission oil level.
I have what sounds like a similar issue on my car if I don't keep the alternator belt tight. It usually starts when raining (belt wet) and if I don't do anything it gets worse until it does it even when dry. I have noticed that pushing in the clutch or putting the trans in neutral will stop the noise - if I release the throttle. This is really only because it drops engine rpms to the point where the belt can "grab" the pulley again.
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#6
by
Rabbit on Roids
on 04 Dec, 2009 09:18
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If it is more or only noticeable in 5th gear then I would say it is definitely transmission oil level.
I have what sounds like a similar issue on my car if I don't keep the alternator belt tight. It usually starts when raining (belt wet) and if I don't do anything it gets worse until it does it even when dry. I have noticed that pushing in the clutch or putting the trans in neutral will stop the noise - if I release the throttle. This is really only because it drops engine rpms to the point where the belt can "grab" the pulley again.
all 100% true ^ ^ ^
except that i have to rev my car up to get the belt to quit squeaking. it idles a little high, i imagine every intake gasket leaks.. but it wont catch at low RPMs, i have to rod it to like 5 grand then let off. probably has alot to do with the powerful amp in the trunk..
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#7
by
burn_your_money
on 04 Dec, 2009 09:32
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#8
by
bajacalal
on 05 Dec, 2009 08:41
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If this noise stops when you push the clutch in, I would think it's transmission related or something like the throwout bearing (or whatever it's called in our backwards transmissions). My car has started doing this same thing but the noise stops when it's warmed up or when I push the clutch in and I know the transmission is due for an overhaul.
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#9
by
parkdog
on 05 Dec, 2009 10:35
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the noise isn't constant it does do it in nuetral and it only started doing it when it started to get cold.
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#10
by
Rabbit on Roids
on 05 Dec, 2009 10:42
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check the bearings in your alt. i bet they are getting ready to take a dump.
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#11
by
parkdog
on 05 Dec, 2009 10:47
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ok yeah i thought it might have been the idler pulley but when i checked that it was smooth ive never worked on an alternator before tho.
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#12
by
parkdog
on 05 Dec, 2009 11:18
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ok so upon further inspection i watch the belts as they are running the alternator belt is tensioned all the way but it still looks loose when the engine is running you can see it kinda whip back and forther could this noise be due to that? the lady i bought the car off said the alternator was rebuilt and she said they couldnt figure out the noise so maybe its just the tension? i wont cancel out the suggestion of alternator bearing being the cause tho.
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#13
by
Rabbit on Roids
on 05 Dec, 2009 11:44
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the pulley may be bent a little bit, or out of round. all it takes is a little zing to the pulley and its bent. then the bent spot has more or less tension depending on how it got bent.
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#14
by
Black Smokin' Diesel
on 05 Dec, 2009 17:50
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I would remove all the belts to see if it's coming from the timing belt. You don't want that one to break. The tensioner could be the culprit. Don't run the engine too long as the waterpump isn't spinning. What accessories does the car have? Start by re-installing the belts one by one to help you find the problem.