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Unread 04-20-2011, 10:55 PM   #1
arnolddyer
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Join Date: Apr 2011
Location: rockford, Il.
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WATER PUMP? 2003 liberty sport

Pulled up in the drive and steam billowed up from under the hood.Thinking It could be a number of things.Started the engine and water was spraying all over due to the fan belt.Couldn't tell if it was coming from the weep hole or shaft of my water pump. I was spraying so much and all over, that I couldn't tell where it was coming from at all.I'm assuming it's the water pump because it sort of made a racket before discovering the steam.It almost seemed it was coming from behind the big central pulley and being slung from the fan belt.Any body experience this before?Any comments?If it is Water pump best to get parts from dealer or after market?

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Unread 04-20-2011, 11:09 PM   #2
tjkj2002
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OEM WP is best,stay far away from any "new" WP(airtex sucks) bought at advance auto,autozone,or o'rielly's unless you like changing them yearly.

If you do not have HD cooling(the mechanical fan) it takes 20mins max to change the WP out on the 3.7.Make sure you use only HOAT coolant(Zerex GO5 at Napa),do not use "all makes/models" or a "universal" coolant as those are OAT coolants and will eat the WP impeller which is plastic.
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Unread 04-21-2011, 08:51 AM   #3
jp7794
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If it is the water pump, there is a good five part video on changing one.

http://www.youtube.com/results?searc...p+liberty&aq=f
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Unread 04-21-2011, 09:29 AM   #4
tbmatthews82
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There are 2 "central pulleys" as you put it. There is one on the very bottom, which is your drive pulley, and one in the middle without grooves, driven by the backside of your Serpentine Belt. That is your water pump. If you have a bad bearing/seal on your water pump, coolant will come through and be slung all over your engine as you said. The 3.7 engine is a breeze to change. The hardest part is draining the existing coolant from your system, but it seems like you already took care of that part .
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Unread 04-21-2011, 09:45 AM   #5
tbmatthews82
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Quote:
Originally Posted by tjkj2002 View Post
OEM WP is best,stay far away from any "new" WP(airtex sucks) bought at advance auto,autozone,or o'rielly's unless you like changing them yearly.

If you do not have HD cooling(the mechanical fan) it takes 20mins max to change the WP out on the 3.7.Make sure you use only HOAT coolant(Zerex GO5 at Napa),do not use "all makes/models" or a "universal" coolant as those are OAT coolants and will eat the WP impeller which is plastic.
I've heard the Bosch Water pumps aren't that bad either.
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Unread 04-21-2011, 10:14 AM   #6
arnolddyer
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Thanks for all the info guys. I also appreciate all your time in responding. The info is very valuable to people like me that wrench for myself. I usually start taking things apart, assess and go from there. I have just of late started looking at forums. What a wealth of info that is there. Mechanics, as well as enthusiasts, share actual experiences,secrets,short cuts and knowledge. I wouldn't have known to use specific coolant.Never even considered it. I sort of had an idea about oem vs. after market, but didn't know for sure. Then there is a video, how cool is that. Again, thanks to all you good people!
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Unread 04-21-2011, 06:32 PM   #7
arnolddyer
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water pump finale

Just finished the water pump. The Youtube video was very helpful. All of the forum inputs were also. You guys were right ,it was easy when you're given certain heads ups. Thanks once again to all.
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Unread 04-22-2011, 09:17 AM   #8
95BadBoy
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Quote:
Originally Posted by arnolddyer View Post
Just finished the water pump. The Youtube video was very helpful. All of the forum inputs were also. You guys were right ,it was easy when you're given certain heads ups. Thanks once again to all.
Good to here that you recieved the info to replace your water pump and things are back to normal.
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Unread 03-18-2014, 07:46 AM   #9
JeepLover31
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Water Pump

My 2003 liberty was doing the same exact thing. I found this forum by accident but i am very grateful i did. It has saved me a lot of time and hair taring out.
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Unread 03-18-2014, 05:58 PM   #10
95BadBoy
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First Post JeepLover31 - Welcome to JF -


A little searching goes a long ways.
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05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded

FS or FT (2) JK Rubi 17" Moab Rims - really nice shape
Need JK Rear Spare tire bracket for project
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