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Unread 10-06-2011, 02:41 PM   #1
AnonymousD
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What spark plug gap on the 4.0L?

I can find my Chiltons OR my Haynes manual and I can seem to really find anything searching around. So what should I gap them to?

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Unread 10-06-2011, 03:03 PM   #2
dillonjm
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IIRC its .035
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Unread 10-06-2011, 06:41 PM   #3
rkham11
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.035 is correct
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Unread 10-06-2011, 06:49 PM   #4
kahjeep
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^^^ what they said!
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Unread 01-04-2013, 04:31 PM   #5
maxthegi
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I knew that if I searched this forum I would find the correct gap somewhere. Thanks for y'alls help.
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Unread 01-06-2013, 01:51 AM   #6
seattle_yj
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Quote:
Originally Posted by maxthegi
I knew that if I searched this forum I would find the correct gap somewhere. Thanks for y'alls help.
Most of the higher end plugs are pre gapped. If you buy from napa they will tell you if it's pre gapped or not.
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Unread 01-09-2013, 09:20 AM   #7
TA-YJ
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Always double check the gap. Ive seen "pregapped" plugs that are like .015-.02 off.
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