Radiator explosion
10-09-2010 | 06:41 AM
#1
Thread Starter
Member
Joined: Aug 2010
Posts: 123
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From: Bennett, CO
Year: 99
Model: Cherokee
Engine: 4L/6
Radiator explosion
The radiator on my 99 Cherokee Sport exploded out all out the passenger side. I replaced the radiator and the thermostat with ease. What could case this disaster? My initial thought was a stuck thermostat since I had to do the repairs in a parking lot.
Thoughts?
Thoughts?
10-09-2010 | 07:05 AM
#2
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
debris in the radiator causing a clog that super heated one spot then the pressure blew it apart
10-09-2010 | 09:31 AM
#3
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
The cooling system builds pressure when hot.......rads go bad.......not unheard of at all. What kind of maintenance has it had over the past 12 years. Might be a good time to replace the water pump, fan clutch, rad cap, hoses, etc.
10-09-2010 | 11:45 AM
#4
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 2
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
Factory Radiator end's are just hard plastic and if they get super heated they can pop. Did you get a factory replacement or an all metal?
10-09-2010 | 08:34 PM
#5
Thread Starter
Member
Joined: Aug 2010
Posts: 123
Likes: 0
From: Bennett, CO
Year: 99
Model: Cherokee
Engine: 4L/6
I made a dash to AutoZone and bought their radiator (also plastic ends) and a new cap and thermostat. The hoses are in great shape.
I had to 'rebuild' the front end recently since 'maintenance' wasn't in the previous owners vocabulary. I slapped a new oil pressure sensor and a new temp sensor on it too for giggles.
Everything seems to be fine now.
I had to 'rebuild' the front end recently since 'maintenance' wasn't in the previous owners vocabulary. I slapped a new oil pressure sensor and a new temp sensor on it too for giggles.
Everything seems to be fine now.
Last edited by 99KeeSport; 10-09-2010 at 08:38 PM.
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