What's that noise...or do I really want to know? - Jeep Wrangler Forum

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Old 08-30-2012, 10:21 PM   #1
Join Date: Aug 2012
Posts: 1
What's that noise...or do I really want to know?

I replaced the water pump because I heard that bearing-rattle noise. The noise is still there but it pretty much goes away when the engine warms up. 2000, 4.0 automatic.
Am I looking at replacing the main bearings? or what????

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Old 08-30-2012, 10:32 PM   #2
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Join Date: Jul 2012
Posts: 234
I would check the idler and tensioner pulley they might cause that noise.
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