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1994 Jeep Cherokee over heating

Tiny
MCGEEJAMAIL
  • MEMBER
  • 1994 JEEP CHEROKEE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 270,000 MILES
It keeps shuting off when I go about three blocks but I did not know for sure if it was overheating because the gauge went out but I replaced the sensor, water pump, thermastat, and plugs and it is still over heating and now there is gray smoke coming out of it when I let it run
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Sunday, July 26th, 2009 AT 8:58 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,200 POSTS
If you are seeing grayish / white smoke, that indicates that coolant is getting into the combustion chamber. It would be my guess that you have a bad head gasket and coolant is getting in that way. You could do a compression test to see if there is a low cylender to check. If you need directions, let me know.

Joe
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Sunday, July 26th, 2009 AT 10:39 PM
Tiny
MCGEEJAMAIL
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  • 2 POSTS
How do I do a compression test for the head gasket and thanks for the reply
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Monday, August 10th, 2009 AT 1:27 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,200 POSTS
Here is a how to for checking compression. A compression gauge is needed. Many parts stores will lend or rent the tool.

https://www.2carpros.com/dia/how_to_check_compression.htm

Let me know if this helps.
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Monday, August 10th, 2009 AT 7:26 PM

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