new rad installed still hot

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Apr 25, 2009 | 02:00 PM

#16

MarineScott

Newbie

Joined: Apr 2009

Posts: 9

Likes: 0

Model: Cherokee

There are water pumps that turn clockwise and ones that turn counter clockwise. What is the history behind the cooling system. Was the block flushed, how about the heater core. Pull the thermotat and test it. The pump pulley may move and the impeller may be shot also. Are both hoses getting hot?

Apr 25, 2009 | 02:10 PM

#17

claygrassmann

Thread Starter

CF Veteran

Joined: Dec 2008

Posts: 1,533

Likes: 0

From: eaton ohio

Year: 93

Model: Cherokee

Engine: 4.0

its been flushed has had two new tstats has brand new radiator hoses feel hot, heater hose feels hot, heater core not flushed i dont think tho.

Apr 25, 2009 | 02:43 PM

#18

TrekkerJmm

"CF Moderator"

Joined: Sep 2008

Posts: 3,045

Likes: 3

From: N.J. Shore Area

Year: 1994

Model: Cherokee

Engine: l6 HO

Quote:

Originally Posted by 4.3L XJ

TJ

I've been looking at fans and have come up with what I think is the ultimate fan.

http://store.summitracing.com/egnsea...=der16925&x=43

This baby doesn't mess around. Pulls 2000 cfm. I am going to mount two. Anyway, check it out.

Thats a nice fan but too much money for my taste, you could get a 2 speed Taurus fan for like $35 around the J/Y near me. Here is a writeup on a conversion...Tj
http://go.jeep-xj.info/HowtoTaurusFanInstall1.htm

Apr 25, 2009 | 02:48 PM

#19

4.3L XJ

CF Veteran

Joined: Aug 2008

Posts: 6,588

Likes: 495

From: Chico, CA

Year: 1986

Model: Cherokee

Engine: 4.3L with headers and full 3" exhaust system

I have dual electric fans now in a shroud I made. But I have air flow issues. I am doing several things to correct that, one of them being doubling the air flow of the fans.

Apr 25, 2009 | 03:40 PM

#20

claygrassmann

Thread Starter

CF Veteran

Joined: Dec 2008

Posts: 1,533

Likes: 0

From: eaton ohio

Year: 93

Model: Cherokee

Engine: 4.0

and how are you doubling the air flow to the fans?

Apr 25, 2009 | 06:36 PM

#21

4.3L XJ

CF Veteran

Joined: Aug 2008

Posts: 6,588

Likes: 495

From: Chico, CA

Year: 1986

Model: Cherokee

Engine: 4.3L with headers and full 3" exhaust system

The normal airflow of an electric fan is 600 - 1000 cfm. These bad boys flow 2200 cfm when single and 2000 cfm in tandem. And they are only 11" in diameter.

Apr 25, 2009 | 07:16 PM

#22

mike37

CF Veteran

Joined: Nov 2008

Posts: 2,473

Likes: 9

From: Paso Robles Ca

Year: 1991

Model: Cherokee

Engine: 4.0

JEEP

Just
Empty
Every
Pocket

Apr 25, 2009 | 07:49 PM

#23

claygrassmann

Thread Starter

CF Veteran

Joined: Dec 2008

Posts: 1,533

Likes: 0

From: eaton ohio

Year: 93

Model: Cherokee

Engine: 4.0

yeah i kno what jeep stands for i got 25 bucks to last till friday and im out of smokes and low on gas

Apr 25, 2009 | 07:53 PM

#24

mycherokee1989

Seasoned Member

Joined: Jan 2009

Posts: 345

Likes: 1

Year: 1989

Model: Cherokee

Engine: inline 6 4.0L

Quote:

Originally Posted by CrawlnCoupe

another thing you guys might not be considering is the possibility of air being trapped. if replace the coolant at some point you gotta make sure to purge all the air outta the system, or you will have problems like mentioned above. this is a problem i had in my mustang, i would drive it for about 30 minutes and it would start getting hot, i noticed that it couldnt be a problem with radiator or the waterpump. because when i would turn the key on 5 minutes after it was really hot and the temp would be down below normal conditions. i ended up tipping the nose of the car up in the air and left the radiator cap off the radiator and left the car running until the stat opening and it purged all the air outta the system, and my car has been perfect temp wise ever since. just a thought.

This is true for the closed systems, such as my 89, but I'm pretty sure with a 93, you have an open system, and you do not run into that problem with an open system. There's a little hole on the waterpump, right below the pulley, and if it looks like water has been coming out (there would be like a streak mark), then your seal is bad, and you should replace. Once again did you put in the required amount of fluid, or would it not take it all? If not, you prob have an air bubble.

Apr 25, 2009 | 07:55 PM

#25

claygrassmann

Thread Starter

CF Veteran

Joined: Dec 2008

Posts: 1,533

Likes: 0

From: eaton ohio

Year: 93

Model: Cherokee

Engine: 4.0

it took all the fluid im plannin on doin the water pump as soon as i get the cash, if that dont do it then its onto head gasket and if that dont do it then im done lol

Apr 26, 2009 | 07:52 AM

#26

MarineScott

Newbie

Joined: Apr 2009

Posts: 9

Likes: 0

Model: Cherokee

Pressure test the system, also they make a product for testing gasses in the coolant for a bad head gasket. Pull some plugs to see how they are burning(color).