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Old Sep 21, 2015, 03:49 PM
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Old Dec 15, 2013 | 06:07 PM
  #38086  
Mullet Bullet's Avatar
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From: Burien, wa
Year: 88
Model: Cherokee
Engine: 4.o
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Originally Posted by cruiser54
Yes. In the radiator on the driver's side lower. But, how cold is it outside? Mine only ever comes on in 90* plus conditions.
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.
Old Dec 15, 2013 | 06:49 PM
  #38087  
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Probably a good idea to get a fan clutch and a new stat. Get the MotoRad High-Flow stat.
Old Dec 15, 2013 | 07:17 PM
  #38088  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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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?
Old Dec 15, 2013 | 07:22 PM
  #38089  
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From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
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Originally Posted by 94XjSport94
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?
When do you smell it. When first starting up on a cold morning or after driving for an hour
Old Dec 15, 2013 | 07:26 PM
  #38090  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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Originally Posted by sycoglitch
When do you smell it. When first starting up on a cold morning or after driving for an hour
Typically both, worse when it's warmed up.
Old Dec 15, 2013 | 07:26 PM
  #38091  
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From: new york
Model: Cherokee
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Will the hatch glass from a pre 97 fit a post 97? Deleted mine on the trail today and it's snowing and thundering and nutty outside.
Old Dec 15, 2013 | 07:26 PM
  #38092  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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Originally Posted by jamorrowxj
Will the hatch glass from a pre 97 fit a post 97? Deleted mine on the trail today and it's snowing and thundering and nutty outside.

No
Old Dec 15, 2013 | 07:34 PM
  #38093  
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From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
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Originally Posted by 94XjSport94

Typically both, worse when it's warmed up.
Possible bad sensors. What year you got again.
Old Dec 15, 2013 | 07:35 PM
  #38094  
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From: Mercer County, NJ
Year: 2001
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Originally Posted by sycoglitch

Possible bad sensors. What year you got again.
Nvm its right there 94 :facepalm:

How old are the upper o2
Old Dec 15, 2013 | 07:36 PM
  #38095  
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From: Ware Shoals, SC
Year: 1993
Model: Cherokee
Engine: 4.0L
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Originally Posted by 94XjSport94
Typically both, worse when it's warmed up.
When mine was burning oil, it was the valve seals. Guarantee they are hard as a rock and leaking. Not hard to do. $40 for seal kit and compressor. About 2-3 hours to do.
Old Dec 15, 2013 | 07:40 PM
  #38096  
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From: Prescott, Az
Year: 1990
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Engine: 4.0
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Originally Posted by 94XjSport94
Typically both, worse when it's warmed up.
It's called a leakdown test. No blue smoke at any times?

How's the line from the manifold to the MAP sensor? Perfect?
Old Dec 15, 2013 | 07:47 PM
  #38097  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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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
Old Dec 15, 2013 | 07:49 PM
  #38098  
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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You may have bad valve stem seals. No big deal as they can be replaced without removing the head.
Old Dec 15, 2013 | 07:51 PM
  #38099  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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That's better than the rings lol. Man, I just did the valve cover a month ago
Old Dec 15, 2013 | 08:09 PM
  #38100  
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From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
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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



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