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Unread 03-16-2010, 05:37 PM   #1
BucYouUp68
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Water Pump Replaced three times in 4 years

I know the 4.0 goes through water pumps, but this is getting out of hand. Looked at the obvious signs, Clutch Fan, Pully, etc...... What else could be the problem. The truck runs fine other than this. I have put on Quality water pumps, so i can see one going out, maybe two, but come on, THREE. Something is amiss here. Any Help would be appreciated.

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Unread 03-16-2010, 06:15 PM   #2
Hutchman
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I just changed mine a few weeks ago. This is the 3rd pump. I have a 00 GC.
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Unread 03-16-2010, 06:44 PM   #3
moonshinefuel
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They are probably remanufactured pumps. Buy new, not rebuilt, if that is the case.
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Unread 03-16-2010, 06:47 PM   #4
bigbill888
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What makes you think the pump is bad??
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Unread 03-16-2010, 06:49 PM   #5
ajmorell
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Is that a WJ thing? I've never heard of them being problematic.
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Unread 03-16-2010, 07:06 PM   #6
BucYouUp68
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Quote:
Originally Posted by moonshinefuel View Post
They are probably remanufactured pumps. Buy new, not rebuilt, if that is the case.
1st one rebuilt, the other 2 new. So there goes that theory.
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Unread 03-16-2010, 07:11 PM   #7
bigbill888
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Check your belt routing. Maybe you are running it backwards.....?? I did that once for a month and couldn't really tell the difference.
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96 ZJ Laredo, 4.0, 242, 230K
95 ZJ Limited, 4.0, 242, 140K
98 XJ Sport, 4.0, 231, 140K
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Unread 03-16-2010, 07:15 PM   #8
moonshinefuel
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Hmm. Well, I know they make an additive to add to the coolant to act as a lubricant for the waterpump bearing. Have you used that?
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Unread 03-16-2010, 07:15 PM   #9
BucYouUp68
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Quote:
Originally Posted by bigbill888 View Post
Check your belt routing. Maybe you are running it backwards.....?? I did that once for a month and couldn't really tell the difference.
Thanks but NO, Checked, double checked, today triple checked. All good.
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Unread 03-16-2010, 07:17 PM   #10
BucYouUp68
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Quote:
Originally Posted by moonshinefuel View Post
Hmm. Well, I know they make an additive to add to the coolant to act as a lubricant for the waterpump bearing. Have you used that?
Are you being serious??????? Is that called Coolant.
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Why is there a fish finder in your Jeep?

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Unread 03-16-2010, 07:27 PM   #11
moonshinefuel
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Let me add this, I think there is an abundance of parts hitting the shelves everywhere that are sub-standard as far as quality, for the sake of a competitive price. It is very possible you are buying different water pumps with the same supplier for the bearing inside it. I would be tempted to go to a dealership and see about finding a factory original new waterpump if it really is becoming an issue for you, if that is, you have not tried that already. And, if the dealership does indeed have new factory original water pumps available, not sourced from an other than original supplier. I am using a factory original new one now, and it is holding up excellently.

Last edited by moonshinefuel; 03-16-2010 at 07:37 PM..
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