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Unread 05-04-2013, 02:30 PM   #1
veiri86
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Wj 4.7 Engine noise inside the driver compartment driving me crazy

Hi JF,

I have a very noisy 4.7 Engine, when I drive my car and drive another 4.7 WJ, I feel so bad, Please if any body can help to tell me what are the sources of the noise I will be grateful, I have that whining noise when am cruising then I went to accelerate a bit, there a noise like driving old Toyota Dyna truck

Because as far as I know, the V8 engine supposed to be smooth and quite

Please check the video below and advice what are the sources of these different noise:




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Unread 05-04-2013, 03:38 PM   #2
pinky2252s
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Sounds kind of like your alternator. But I cant really hear the whine in the video. Just put a stethoscope or a pipe or something and put your ear to it to see which pulley is whining.
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Unread 05-04-2013, 03:55 PM   #3
car5car
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There are a few bearings and one of them is dead:
AC compressor
alternator
idler pulley
tensioner pulley.
Both pullies are for sale from any autoparts store.
bearings of compressor ($15) and alternator ($3)are available too.
Weak tensioner can make belt noise.
PS pump can make noise too, check fluid.
Buy stethoscope.
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Unread 05-04-2013, 04:26 PM   #4
pinky2252s
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Quote:
Originally Posted by car5car View Post
There are a few bearings and one of them is dead:
AC compressor
alternator
idler pulley
tensioner pulley.
Both pullies are for sale from any autoparts store.
bearings of compressor ($15) and alternator ($3)are available too.
Weak tensioner can make belt noise.
PS pump can make noise too, check fluid.
Buy stethoscope.
I dont think you can easily replace the bearing in the alternator.
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Unread 05-05-2013, 05:37 AM   #5
veiri86
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Wj

Quote:
Originally Posted by pinky2252s View Post
Sounds kind of like your alternator. But I cant really hear the whine in the video. Just put a stethoscope or a pipe or something and put your ear to it to see which pulley is whining.
Quote:
Originally Posted by car5car View Post
There are a few bearings and one of them is dead:
AC compressor
alternator
idler pulley
tensioner pulley.
Both pullies are for sale from any autoparts store.
bearings of compressor ($15) and alternator ($3)are available too.
Weak tensioner can make belt noise.
PS pump can make noise too, check fluid.
Buy stethoscope.
Quote:
Originally Posted by pinky2252s View Post
I dont think you can easily replace the bearing in the alternator.
I hope the noise not from inside the engine.

So any idea idea where I can buy ONLINE these bearings for the AC compressor and alternator?

And any tips how to replace them?

Or at least if any body has idea about the bearings size so we can source them from any hardware shop

Thanks
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Unread 05-06-2013, 12:33 PM   #6
veiri86
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Join Date: Jan 2013
Location: Tulkarem, Tulkarem, Palestine
Posts: 510
So any idea idea where I can buy ONLINE these bearings for the AC compressor and alternator?

And any tips how to replace them?

Or at least if any body has idea about the bearings size so we can source them from any hardware shop

Thanks
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