The Mud Pit > Wrenching

XJ was Overheating

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reptile610:

--- Quote from: kirksjeep on August 01, 2009, 05:16:21 AM ---
--- Quote from: PaulW on July 31, 2009, 10:36:42 PM ---
--- Quote from: kirksjeep on July 31, 2009, 09:31:02 PM ---As I walked by the bucket of old coolant this morning, it looked more orange than rusty and that when I remebered I added Orange coolant instead of green after the cap blew off.  I didn't find any rust or debris at the bottom of the bucket, so I am guessing it is ok. 

--- End quote ---

good to know.  the other thing i would check for is a head gasket concern then.  you can get a block tester cheap at almost any auto parts store.  it goes into the radiator and detects exhaust gasses through a chemical process.  it's worth trying just to make sure you really don't have a big problem.

--- End quote ---

If I have any more problems I'll look into that.  The 00-06 heads are know for cracking between the 3rd and 4th cyclinders, so I have been checking for the normal signs.  The 2000 are the worst by far and have something like a 85% failure rate.  The other years are all less then 10%. 

--- End quote ---

uh oh. 

PaulW:

--- Quote from: kirksjeep on August 01, 2009, 05:16:21 AM ---
--- Quote from: PaulW on July 31, 2009, 10:36:42 PM ---
--- Quote from: kirksjeep on July 31, 2009, 09:31:02 PM ---As I walked by the bucket of old coolant this morning, it looked more orange than rusty and that when I remebered I added Orange coolant instead of green after the cap blew off.  I didn't find any rust or debris at the bottom of the bucket, so I am guessing it is ok. 

--- End quote ---

good to know.  the other thing i would check for is a head gasket concern then.  you can get a block tester cheap at almost any auto parts store.  it goes into the radiator and detects exhaust gasses through a chemical process.  it's worth trying just to make sure you really don't have a big problem.

--- End quote ---

If I have any more problems I'll look into that.  The 00-06 heads are know for cracking between the 3rd and 4th cyclinders, so I have been checking for the normal signs.  The 2000 are the worst by far and have something like a 85% failure rate.  The other years are all less then 10%. 

--- End quote ---

espically on a higher mileage vehicle.  the leak down/block tester should be part of the annual tune-up.

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