Mountaineer V8-302 5.0L VIN P EFI (1998)
Spark Plug: Description and Operation
The spark plugs:
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change high voltage pulses to spark at gap which ignites fuel and air mixture.
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have a platinum-enhanced active electrode for long life. The active electrode is different for LH and RH sides.
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have replacements with both electrodes platinum-enhanced so they can be used on either side.