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did the XJ's end up with the bad head too?

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Old Feb 14, 2010 | 07:25 PM
  #1  
huntingman2706217's Avatar
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From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
Default did the XJ's end up with the bad head too?

was alittle confused on some past reading but did the cherokees have the head proned to cracking like the early WJ's and TJ's did? when they first started the distibutorless motors? thanks...
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Old Feb 14, 2010 | 07:28 PM
  #2  
89Laredo's Avatar
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
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Yes, IIRC it is the 0331 head used in the 2000-01 models.
Someone correct me if im wrong.
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Old Feb 14, 2010 | 07:33 PM
  #3  
98 JeepJeep's Avatar
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From: Stafford,VA
Year: 1998
Model: Cherokee
Engine: 4.0
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any 0331 headed 4.0
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Old Feb 14, 2010 | 07:36 PM
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From: Okc area
Year: 1991
Model: Cherokee
Engine: 4.0 I6
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Yes 2000 and 2001 used the 0331 heads.
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Old Feb 14, 2010 | 08:35 PM
  #5  
huntingman2706217's Avatar
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From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
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i knew the 0331... just wasnt positive if they ran them in the XJ's... no 00 or 01 for me... im thinking about selling my 03 dodge 2500 and buying something cheaper and smalled... figured since i knew so much about xj's now i should lean towards getting another one... but then i started thinking "what if i find a clean comanche for a everyday driver" so we will see what i end up doing... not getting 0331 head cherokee thats for sure... already sticking a motor in a 00 WJ cause of this...
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Old Feb 14, 2010 | 08:48 PM
  #6  
huntingman2706217's Avatar
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MJ>XJ
 
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From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
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dang talk about clean... this first one has factory brush guard and roll bar even... the second is clean as heck but they want you to pay for it for sure...

http://cgi.ebay.com/ebaymotors/1987-...item3a57b5c6de

http://jacksonville.craigslist.org/ctd/1595004871.html
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Old Feb 14, 2010 | 10:12 PM
  #7  
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aj6
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From: chi
Year: 2001
Model: Cherokee
Engine: 4.0
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mmmm yes 0331 does crack.. but that head has better flow with more low torqe..

if you keep your cooling in check youll be fine...
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Old Feb 14, 2010 | 10:20 PM
  #8  
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From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
Default

the jeep overheats because the head cracks and causes it to... not you over heat the jeep and the head cracks... well i mean that doesnt help but in most cases its the head cracking... causing the head gasket to go... and then the lower end craps... at least this is most peoples cases that ive read anyways... if you catch it in time u can replace the head with the revised version but i have yet to have seen a vehicle with a bad head gasket make it much longer after the gasket was replaced... generally the damage is done already and replacing the head gasket is a waste of money... UNLESS it is your jeep and your mechanically enclined enough to catch it right off the bat... which is still rare... normally nobody knows until it starts overheating...
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