Question about Jeep Grand Cherokee
I don't know about a 1998, but i do know that E3 plugs
will not work at all in newer vehicles.
I have to ask. Why would you even try them?
I never believe any advertising or find it necessary
to use anything other than what a car maker recommends.
If you do your asking for trouble.
I would check for vacuum leaks & forget that one cylinder
misfire. If you had COP Coils then you replace that one
but you don't
Loose the plugs
Posted on May 24, 2011
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Posted on Jan 02, 2017
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