88 overheating problem - JeepForum.com
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post #1 of 4 Old 12-24-2010, 01:44 PM Thread Starter
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2002 KL Cherokee 
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Location: milford
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88 overheating problem

i have an 88 xj and it was overheating, i changed the thermostat and the water pump and then it worked good for about a month but then it started overheating again, please helppppppp

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post #2 of 4 Old 12-24-2010, 03:42 PM
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Did you flush the cooling system? Did you remove all the air from the system? And are you using a 50/50 mix of anti-freeze and distilled water? Just some thoughts I had. I would also make sure the cap and bottle are sealing correctly. And when does it overheat, at idle/in traffic, or at highway speeds, or all of the above? The fan clutch is suspect if it overheats at slow speeds in traffic or at idle, and the electric fan should come on around 215* or so, and anytime the AC/defrost is selected.

  1. '95 XJ country edition, 4" coils/3/4" spacers, HD leafs with extra main added in, Ironman adjustable control arms, rough country shackles, aussie locker, JK rubicon shocks, 35" mudder's, soft 8's, cobra cb
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post #3 of 4 Old 12-25-2010, 07:59 AM
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check the cap on the burp tank for proper sealing.
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post #4 of 4 Old 12-31-2010, 08:06 PM
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1988 XJ Cherokee 
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Definately get a new cap for the coolant tank. I have had this problem for years. My solution was to get a coolant tank camp made for a Volvo. It will work!
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