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  1. R

    I recently changed the spark plugs and wires on my 99 Ford F150 4.2 V6 and now it's

    running even worse.? Before I made the changes, my truck was running pretty well. In doing a routine plug change though, I noticed that one of the connectors inside the plug wire was broken. Yesterday I changed the plugs and just left the one with the broken connector as it was. It ran the same...
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