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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
Hello,
I just replaced the spark plugs on my 2004 Explorer with the 4.0 V6. The car has 127,000 miles and this is the first plug change since new. All 3 plugs on the left bank had uniform wear but were severely eroded so that there was little more than stumps for electrodes. On the right...
