Help!!! Over heating 4.0 Grand Cherokee - Page 2 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #16 of 26 Old 11-04-2013, 02:43 PM Thread Starter
Robert1964
Registered User
 
Join Date: Nov 2013
Location: Sanford
Posts: 8
Okay......you guys were right on the money.....I pulled the pump today and the plastic impeller has completely seperated from the shaft on the back of the pump.....what ever happened to the steel impellers water pumps used to have on them. Just goes to show ya......they don't make them like they used to. I just want to thank ALL YOU GUYS for your help...... YOU GUYS ROCK!!!!!

I will update yall once the new pump is on and its back running...

Robert1964 is offline  
Sponsored Links
Advertisement
 
post #17 of 26 Old 11-04-2013, 02:45 PM
MuddyWJ
Registered User
2004 WJ 
 
Join Date: Feb 2012
Location: San Rafael
Posts: 3,359
Quote:
Originally Posted by Robert1964 View Post
Okay......you guys were right on the money.....I pulled the pump today and the plastic impeller has completely seperated from the shaft on the back of the pump.....what ever happened to the steel impellers water pumps used to have on them. Just goes to show ya......they don't make them like they used to. I just want to thank ALL YOU GUYS for your help...... YOU GUYS ROCK!!!!!
I think Napa auto has metal impellers still. They did for my mustang.
MuddyWJ is offline  
post #18 of 26 Old 11-04-2013, 04:05 PM
michiganmaveric
Got Beer?
 
michiganmaveric's Avatar
2011 JK Wrangler 
 
Join Date: Aug 2004
Location: Southeast Michigan
Posts: 2,807
Quote:
Originally Posted by MuddyWJ View Post
I think Napa auto has metal impellers still. They did for my mustang.
Make sure, the one I got 4 years ago from NAPA had plastic. They might have both types, just have to ask.

Previous Jeeps: 84 CJ7 (A True Jeep), 2000 XJ (163,000 Miles/Totaled (Pictures of wrecked Jeep in gallery)), 2004 WJ (parting out die to major electrical issues)

If you don't have time to do it right the first time, how do you have time to do it over.

Lifetime member #13


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
lifetime member/airforce26yrs

2011 Tango/Mango JKU
michiganmaveric is offline  
post #19 of 26 Old 11-04-2013, 05:34 PM
McGR
Registered User
2007 XK Commander 
 
Join Date: Aug 2005
Location: McHenry, IL
Posts: 287
One of the "improvements" for the 4.0 WJ engine introduced in 1999 was an "improved" water pump. Unfortunately, the improvement included the newly re-designed plastic impeller. Earlier 4.0 motors had a typical stamped metal impeller. To the best of my knowledge the various pumps available for the WJ 4.0 will have the plastic impeller. If someone knows otherwise please post the source.
McGR is offline  
post #20 of 26 Old 11-04-2013, 05:54 PM
Tagg
Registered User
 
Join Date: Feb 2013
Location: Pgh
Posts: 58
Just purchased this from Ebay a couple of weeks ago. Metal Impeller.

http://www.ebay.com/itm/150623033631...84.m1439.l2649
Tagg is offline  
post #21 of 26 Old 11-04-2013, 05:58 PM
MuddyWJ
Registered User
2004 WJ 
 
Join Date: Feb 2012
Location: San Rafael
Posts: 3,359
Quote:
Originally Posted by Tagg View Post
Just purchased this from Ebay a couple of weeks ago. Metal Impeller.

http://www.ebay.com/itm/150623033631...84.m1439.l2649
How's it working for you? Any oddities during install?
MuddyWJ is offline  
post #22 of 26 Old 11-04-2013, 06:11 PM
rugsWJ
Registered User
2000 WJ 
 
Join Date: Jun 2013
Location: Seaford
Posts: 40
Out of curiosity how hot were you running? My WJs both run around 210-215 so I always jsut though jeeps ran a bit hotter.

Follow my build on Instagram ---> @mattruggiero
rugsWJ is offline  
post #23 of 26 Old 11-04-2013, 06:18 PM
Tagg
Registered User
 
Join Date: Feb 2013
Location: Pgh
Posts: 58
We purchased this WJ with a bad 4.0 engine. We installed the replacement engine with a New 195* thermostat, this water pump and hoses. It shows on the temp gauge as almost 1 notch below the center temp of 210*. It may move very slightly about 5 degrees. I would say it is running about 190*.
Tagg is offline  
post #24 of 26 Old 11-04-2013, 06:26 PM
MuddyWJ
Registered User
2004 WJ 
 
Join Date: Feb 2012
Location: San Rafael
Posts: 3,359
Quote:
Originally Posted by Tagg View Post
We purchased this WJ with a bad 4.0 engine. We installed the replacement engine with a New 195* thermostat, this water pump and hoses. It shows on the temp gauge as almost 1 notch below the center temp of 210*. It may move very slightly about 5 degrees. I would say it is running about 190*.
X2 on temp. Just replaced cooling system and used correct fluid as well.
MuddyWJ is offline  
post #25 of 26 Old 11-08-2013, 09:52 PM
rep-tile
Cash 4 Clunkers Survivor
 
rep-tile's Avatar
2004 WJ 
 
Join Date: Jul 2013
Location: bakersfield
Posts: 1,154
I know for a fact that Carquest carries the pump with metal impeller. Part #51-1867. The plastic ones tend to break off.
rep-tile is offline  
post #26 of 26 Old 11-14-2013, 04:57 PM Thread Starter
Robert1964
Registered User
 
Join Date: Nov 2013
Location: Sanford
Posts: 8
I just want to say thanks to all the guy's that told me about the water pumps on these jeeps having plastic impellers. THEY DO !!! Mine had broken off the shaft just like you guy's had said yours did. Had 135,000 miles on it. I've just had never seen one do this. It made absolutly no noise and did not leak a drop of antifreeze so I had not bothered to check it. But that was the problem. Head is fine. Over heating was not severe enough to blow head gasket or cause any other damage. It sat so long that I now have a sticky brake caliper which I'm replacing tomorrow. Thanks guys for all your help. By the way, NAPA has metal empellers and they are pressed onto the shaft. The NAPA pump also cools better than the original (before it broke) NAPA'S pumps are $3 more than advance auto and are lifetime pumps. NAPA PUMP $59.99
Robert1964 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome