Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

spark plugs!

Old Apr 16, 2016 | 11:11 AM
  #1  
gregxgriffin's Avatar
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From: Altoona, Pa
Year: 1999
Model: Cherokee
Engine: 4.0
Default spark plugs!

My 94 xj calls for champion 436. I have 6 438's sitting around from a previous Cherokee anyone ever use the 438's in a pre 96 are they maybe hotter or colder? Thanks!
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Old Apr 16, 2016 | 01:15 PM
  #2  
Oswalla's Avatar
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From: Oregon (Wetside)
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0l
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Same heat range, longer the insulator tip is, hotter it is.
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Old Apr 16, 2016 | 04:01 PM
  #3  
CCKen's Avatar
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From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
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Some data:





Name:  Visio-YC%20LYC%20ECC%20Projection.jpg
Views: 104
Size:  2.31 MB
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Old Apr 16, 2016 | 07:01 PM
  #4  
gregxgriffin's Avatar
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From: Altoona, Pa
Year: 1999
Model: Cherokee
Engine: 4.0
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Originally Posted by CCKen
Some data:
Much appreciated!
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