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Forum Home > Tech Question > 90 XJ cooling system

Hamster
Limited Member
Posts: 5

First of all, let me just say that this particular cooling system sucks swamp water! Fortunately, a few of the members gave me some sound advice on how to fix the problem.

Install a newer model radiator w/filler neck and cap, eliminate the surge tank from the system and install an over-flow bottle. My budget won't allow for the radiator I want just yet (2 row with aluminum tanks rather than plastic) so, I've decided to go a cheaper route as a temporary measure. I hate to have to drain the system twice but, that's life.

The surge tank will still get eliminated and the over-flow bottle will still get installed but, I'll be installing a T-fitting in the upper radiator hose that will have a standard radiator cap and nipple for the over-flow tube. For now, I will simply connect the 2 surge tank hoses together but, I'll eventually want to eliminate the 2 metal pipes in those hoses.

Considering the bends necessary in the hoses, I doubt just a straight piece of heater hose would work. Does anyone know if there is a pre-shaped hose for running that bypass?

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Do not speak of what you have done, (or what you are going to do.)

Do it and let it speak for itself.

June 25, 2012 at 10:59 PM Flag Quote & Reply

hal2296
Limited Member
Posts: 245

You install new model radiator you update to a 1997 cooling systerm you need to Look at the water pump you have a right or left head  on on a 90  ???. cooling system the way the belt runs and the cooling flows the right way  out the top.

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WHAT I DO

June 26, 2012 at 9:02 AM Flag Quote & Reply

Hopper
Administrator
Posts: 1250
Parts stores have prebent hoses just ask them to let you see what they got
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Phillippians 4:13

look out the silver bullet is ready to rock

June 26, 2012 at 2:59 PM Flag Quote & Reply

White Fox
Limited Member
Posts: 362



also removing the clutch fan and installing the Ford Tarus electric fan does miracles. make sure to also upgrade your alt to the 130amp from a grand cherokee.


you can buy Cheap 2 row radiators off ebay. i bought one for my cherokee awhile back. and also if your ac dont work then remove the condensor to help air flow pass through the radiator.

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July 1, 2012 at 1:30 AM Flag Quote & Reply

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