Water pump impeller shot - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-11-2011, 09:00 AM
Thread Starter
WBN3's Avatar
Join Date: Apr 2011
Location: Baytown, TX
Posts: 246
WBN3 is on a distinguished road
Water pump impeller shot

Folks - posted this in follow-up to another thread, but wondered if anyone had seen this kind of damage to a water pump impeller before.

A little closer look:

I bought this TJ used with 186k miles on it, the guy said he had just changed the radiator out. After flushing the heater core to get it to heat up (which didn't work), I eventually found this problem. The core was full of junk and had presumably been stagnant for quite some time, but this pump didn't put up enough pressure to push water through it even after I flushed it (from both directions). I fear that it is going to spring a leak when I put the new pump on... I've seen videos of that job, and I may run screaming into the hills if I have to do it.

Seriously, though - without much of an impeller, I'm surprised the engine wasn't overheating. We don't take very long trips in it, my son just uses it as his daily driver to school and around town. Wonder if anyone has seen this? Are there any issues it might cause with cooling passages on the block not getting good flow? Am I going to see water leaks everywhere when I put the new pump on it?

Thanks in advance for any recommendations.
WBN3 is offline   Quote
Old 06-11-2011, 06:31 PM   #2
Shelby427's Avatar
Join Date: May 2011
Location: Lakeland FL and Hooversville PA
Posts: 2,379
Shelby427 is on a distinguished road
Hmm, seeing that both pump housings aren't identical, it could be that a cheap overseas rebuilt pump was once used. Poor metal quality and poor coolant condition could cause the impeller to rust and wear away, and would be accelerated by a bunch of trash flowing around in the coolant.

97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.
Shelby427 is offline   Quote
Old 06-11-2011, 09:17 PM
Thread Starter
WBN3's Avatar
Join Date: Apr 2011
Location: Baytown, TX
Posts: 246
WBN3 is on a distinguished road
The one I put on it is an aftermarket from AutoZone. Here is a picture of the pump I took off... can you tell whether it is OEM or reman? My son thought the little star on the right looked like the Chrysler logo...

And a close-up of the casting...

Just wondering... someone else told me the freeze plugs are probably not far from failure, based on the amount of corrosion that must have taken place to damage that impeller. I have also heard that most of the damage could've been cavitation rather than chemistry... hard to know what to believe.
WBN3 is offline   Quote

coolant , engine , water pump

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Water pump question Tang87 YJ Tech Forum 29 01-23-2011 10:21 PM
Water Pump mudslinger150 TJ Tech Forum 10 12-23-2010 05:09 PM
2000 jeep wrangler fuel pump replacement madmilitia TJ Tech Forum 16 07-08-2010 03:40 PM
TJ water pump JimboJeep TJ Tech Forum 18 06-16-2010 05:10 PM
Water pump adventure Raptorclaws YJ Tech Forum 7 02-22-2010 09:03 AM

All times are GMT -5. The time now is 06:28 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner