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XJ Ask the Question Thread
Seasoned Member
Join Date: Aug 2013
Location: Burien, wa
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Year: 88
Model: Cherokee
Engine: 4.o
45 degrees or so. If its not that then why else would the fan not come on. I am tempted to jump on rock auto and order a fan clutch and thermostat. I want to just replace everything that could be a problem at this point.
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Probably a good idea to get a fan clutch and a new stat. Get the MotoRad High-Flow stat.
CF Veteran
Join Date: Apr 2011
Location: Carrollton, GA
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
I believe my Jeep is running rich. I can smell it whenever it's running in combination with some burning oil. Not getting any codes. 94 with 200k.
Any ideas?
Any way to tell where I'm burning oil, like rings or valve seals?
Any ideas?
Any way to tell where I'm burning oil, like rings or valve seals?
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Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
When do you smell it. When first starting up on a cold morning or after driving for an hour
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
CF Veteran
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
CF Veteran
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
CF Veteran
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Seasoned Member
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Year: 1993
Model: Cherokee
Engine: 4.0L
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
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Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
O2 is probably 18 months?
I can see blue smoke in the mornings since it's been cold and I could see it while the engine was warming up.
I recently replace the CCV valves on the cover, lines and intake had a bit of oil in them b
I can see blue smoke in the mornings since it's been cold and I could see it while the engine was warming up.
I recently replace the CCV valves on the cover, lines and intake had a bit of oil in them b
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
You may have bad valve stem seals. No big deal as they can be replaced without removing the head.
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
A compression test with oil would also be a cheap way to tell. If it's your rings you'll see a jump in compression in a wet test vs dry. Could still be valve seals too lol