Radiator filler neck fail.
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 73
Likes: 0
From: Fraser Valley, British Columbia, Canada
Year: 2000
Model: Cherokee
Engine: 4.0 inline 6
Hey guys, when i drove home from school today, and turned my truck off, there was steam billowing out from the hood, saw coolant splash on the side of my fender, and a lot of coolant leaking onto my driveway.
I popped the hood and found my cap half on, half off, and my whole engine bay covered in coolant. I cleaned out the airbox of coolant. And gave my hood and fender a spray down for now.
I guess im parking my truck til i can fix the filler neck.
One of the ridges that the cap locks onto is worn out to a point where i can easily pull the cap up when locked.
Why did jeep have to use a plastic filler neck?
At first i was bummed since i just bought the truck a week ago and got a sick deal.
So at first i thought i could fix it somehow.
Then i lost hope and thought id just have to bite the bullet and put a new rad in.
But then i stumbled upon this.

Does anybody thing if i hacksaw the old plastic filler neck off, and attach this with rad hose and pipe clamps and such it would work?
Please let me know if anyone has tried something like this, or if this happened to you, and what you did to fix it.
Thanks.
I popped the hood and found my cap half on, half off, and my whole engine bay covered in coolant. I cleaned out the airbox of coolant. And gave my hood and fender a spray down for now.
I guess im parking my truck til i can fix the filler neck.
One of the ridges that the cap locks onto is worn out to a point where i can easily pull the cap up when locked.
Why did jeep have to use a plastic filler neck?
At first i was bummed since i just bought the truck a week ago and got a sick deal.
So at first i thought i could fix it somehow.
Then i lost hope and thought id just have to bite the bullet and put a new rad in.
But then i stumbled upon this.

Does anybody thing if i hacksaw the old plastic filler neck off, and attach this with rad hose and pipe clamps and such it would work?
Please let me know if anyone has tried something like this, or if this happened to you, and what you did to fix it.
Thanks.
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
I'm with 89Laredo on this.
I wouldn't trust a do-hickey like that; more points for failure even if it would work initially, and you still have an old radiator.
Get a new one.
I wouldn't trust a do-hickey like that; more points for failure even if it would work initially, and you still have an old radiator.
Get a new one.
Last edited by tjwalker; Jan 31, 2012 at 05:43 AM.
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Never buy a radiator from a dealership.
Replacement radiators start at around $80 from many parts stores and go up to around $300, depending on design and materials.
Replacement radiators start at around $80 from many parts stores and go up to around $300, depending on design and materials.
Seasoned Member
Joined: Jan 2012
Posts: 401
Likes: 1
From: Smithfield, VA
Year: 1997
Model: Cherokee
Engine: 4.0
Ok just wondering. You said OEM so I thought you were speaking original Jeep parts. I have checked several places and just over $100 is as cheap as I can find. Just thought I'd ask.
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
You can buy a direct replacement from just about any parts house. That thing you have pictured is suposed to be bolted on where the t-stat housing goes, but not on a 4.0, it's for a V6 or V8.
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CF Veteran
Joined: Mar 2010
Posts: 47,923
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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