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#3 |
Join Date: May 2009
Location: Verona, KY
Posts: 101
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what kind of spark plugs are in it?? Is it a 6cylinder? Certain brands of spark plugs can make the wrangler 4.0 run very bad. Sounds dumb but it happened to friends jeep, took it to the dealer and they changed out his plugs and put the right ones in.
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