Report: Check Engine Light due to worn spark plugs
Ford Expedition Problem
Engines Affected: 4.6L V8, 5.4L V8
Average Mileage: 150,416 mi (117,000 mi - 205,000 mi)
changing spark plugs - the old ones have over 100K on them
Visitor, 2004 Ford Expedition, 4.6L V8, 153,000 mi
Rough idle and hesitation. Cleaned PCV and found a crack in the elbow that attaches to the trottle body. New hose and problem gone.
Visitor, 2000 Ford Expedition, 5.4L V8, 130,000 mi
Code cylinder 8 & 4 misfire. Changed coil & spark plug on 8 & 4. Then code cylinder 7 * 3...changed...then code cylander 1...so changed all. Then code for crank shaft sensor...changed it. Now code for MAF Sensor.