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Old 09-10-2013, 10:55 PM   #1
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Slight Squeal Prior to Shifting

When I shift my TJ (99, 5spd, 4.0) from first to second and second to third I have begun to get a slight high-pitched squeal just before I shift gears. It doesn't occur from 3rd to 4th or 4th to 5th. And it seems to go away entirely once I've driven it awhile. Serpentine belt adjustment? I initially thought it might be the throw out bearing, but I'm a bit confused because it begins prior to shifting. Any ideas would be appreciated. The jeep has 75,000 miles and pretty much stock right now.

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Old 09-10-2013, 11:20 PM   #2
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I have a feeling it must be the belt not a throw out bearing. If it were a throw out bearing You would probably feel it when you push in the clutch, not just hear it, and it would happen every time you push in the clutch.

The belt is a smaller expense fix. Check the belt to see if it is in good condition and not too loose. Not an expensive part or too hard to replace if it is worn. I am not a mechanic but I have have messed with many cars over the years, and sold auto parts and that would be my first guess.

Good luck with it.

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Old 09-11-2013, 06:05 AM   #3
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Thanks. Always nice to have someone else weigh in. I'll check the belt and adjust the tension on it. If my memory serves me correctly, I believe the PO did install a new belt not too long before I bought the jeep.
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Old 09-12-2013, 12:09 AM   #4
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I also think that starts to make noise prior to shifting is when the rpm's are increasing enough to cause the belt to slip.

Even though the jeep may have a hydraulic clutch ( not sure i never checked on this), I still think you would get a " feeling" when you are using the clutch if it were the throw out bearing.

Good luck with it. You could also check the pulleys on the alternator and A/c (if you have a/c) to make sure they are turning freely.
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