spark plugs
#3
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Join Date: Feb 2010
Location: Oroville, CA
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Champion or Autolite will work just fine, no need for expensive plugs, the only difference you'll feel is in the wallet.
#5
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Join Date: Aug 2011
Location: Burbs of detroit
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Year: 1997
Model: Cherokee
Engine: 4.0
With the 4.0 I have read a millions times, stick with copper plugs. One they are cheaper and two they perform better on these engines.
Make sure they are gaped correctly and you will be golden
Make sure they are gaped correctly and you will be golden
#6
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Join Date: Dec 2009
Location: western new york
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Year: 2000
Model: Grand Cherokee
Engine: 4.0
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