Question about 1989 Jeep Cherokee

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1989 cherokee xj major overheating issue

New radiator, hoses, thermostat, pressure bottle and cap, and heater core
no leaks, but overheats very quickly and evaporates an entire tank of coolant in about 5 minutes. steam pours out of radiator near hoses and from pressure bottle. i have burped it, flushed it,and checked connections,
im pretty sure the fans are working alright but it
still overheats (it it is currently 8 degrees out too btw)
ive put way too much money into this, and im starting to get pissed
any advice? if i cant fix this soon, this will most likely turn into a classifieds post

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  • liamchops Feb 06, 2009

    ill look into it
    im still fairly new at this stuff
    thank you


  • Allison Hulbert May 11, 2010

    Is your water pump working. By the sound of it this is the only part left to change

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2 Answers

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You have to install a bypass filler in the smaller hose that comes off the thermostat housing,and fill it from there first with a hose,then fill the pressure bottle and start the motor and bleed the air out.To make it easier you can pull the upper rad hose and fill it first.

Posted on Feb 06, 2009

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Fill up the cooling system and start the jeep. Let the jeep get at operating temp with the radiator cap off. If the coolant level goes down, add more. Keep your eye on the radiator level and see if any bubbles appear while the car is running. DON'T keep your head over the filler neck, if you do see alot of bubbles or air bubbles, you could have a bad headgasket.

Posted on Feb 06, 2009

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