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post #1 of 4 Old 01-18-2014, 03:37 PM Thread Starter
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2000 XJ Cherokee 
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Hello and help request

Hello everyone, I am new to your forum but not to Jeeps. I own a 2000 Cherokee XJ at the moment in excellent condition other than a recent problem and only 69k. I have owned this jeep since last march when it had 55k on it. Lately I have been having some issues and I suspect it to be a bad head gasket or something of the sort. The problems and symptoms I am experiencing are sluggish acceleration, coolant leak from a mystery location (I'm assuming its internal), salty jumbo pretzel smell (on occasion when driving but not every time), My heat no longer works and I have been getting poor gas mileage. When I carry a heavy load my XJ will drink antifreeze over a short distance but again no leak to be seen. The oil on my dipstick is somewhat thin and brown looking like its watered down but its hard to tell if its got antifreeze in it or not. The spark plugs are new, last oil change was about 2k ago, coolant flush about 4k ago. Oil pressure is normal and nothing indicates that I am overheating. I have been reading other posts as well as referring to my Haynes repair manual and these are the reasons I believe it is what it is, however I am posting seeking people with experience to assist my diagnosis.
Thank you for your time,

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post #2 of 4 Old 01-18-2014, 04:17 PM
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2000 XJ Cherokee 
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Location: central mass
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First thing I would do

No heat (in the interior?) maybe that core is pluged and/or leaking would be a possibility.
A/C in that heat box catches condensation and then runs thru a rubber hose and dumps outside (right side near the frame)....It maybe that if the heat core leaks would also catch the same way or the floor is wet on the passenger side under the carpet.
Hope this helps. Rich
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post #3 of 4 Old 01-18-2014, 04:36 PM
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2000 XJ Cherokee 
Join Date: Apr 2002
Location: out in the garage - Minneapolis
Posts: 25,857
Google Jeep 0331 head. The main symptoms are mysteriously disappearing coolant, and milk shake looking oil.

Stop driving the Jeep. You need to fix this as soon as possible, before you destroy the engine.


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post #4 of 4 Old 01-18-2014, 05:12 PM
It's the crank sensor!
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1999 XJ Cherokee 
Join Date: Nov 2007
Location: Central Minnesota
Posts: 8,860
Originally Posted by CJ7-Tim View Post
Google Jeep 0331 head. The main symptoms are mysteriously disappearing coolant, and milk shake looking oil.

Stop driving the Jeep. You need to fix this as soon as possible, before you destroy the engine.
This. The 0331 head has a casting defect between cylinders 3-4 which gives it the potential to crack there. While it certainly is possible for the head gasket to blow, the head itself cracks far more often than the gasket goes.

Instead of reinventing the wheel, SEARCH and you'll find hours of light reading.

Good luck!

99 Cherokee, 4.0 AW4, NP242
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