new rad installed still hot
Thread Starter
CF Veteran
Joined: Dec 2008
Posts: 1,533
Likes: 0
From: eaton ohio
Year: 93
Model: Cherokee
Engine: 4.0
installed my new rad last night and test drove it today and its still overheating!! WTF! any ideas? btw im only runnin one fan right now cause my new fan shipped late
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 3
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
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"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 3
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
Yea I know the feeling, after replacing most of the cooling system I still run a little hot when I'm on the beach. I'm gonna put a high volume 2 speed Ford Taurus electric fan in and see what that does...Tj
I have the same problem when I am steady cruising, I have replaced radiator , thermostat (180), and water pump. I eliminated the engine driven fan and have two electric fans. I run around 210 driving and then it bounces up and back down. then I have the resivour bubbling. So I have decicded to fix it. I am selling the jeep!!!
Thread Starter
CF Veteran
Joined: Dec 2008
Posts: 1,533
Likes: 0
From: eaton ohio
Year: 93
Model: Cherokee
Engine: 4.0
may you could try converting to the open system i like the open system i just gotta get a water pump then ill have an entire brand new cooling system lol
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 the same problem when I am steady cruising, I have replaced radiator , thermostat (180), and water pump. I eliminated the engine driven fan and have two electric fans. I run around 210 driving and then it bounces up and back down. then I have the resivour bubbling. So I have decicded to fix it. I am selling the jeep!!!
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'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.
Seasoned Member
Joined: Apr 2009
Posts: 409
Likes: 0
From: indiana
Year: 97
Model: Cherokee
Engine: 4.0
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.


