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Ford Expedition Problems

Check Engine Light due to worn spark plugs on Ford Expedition

Problem Description and Possible Solution

An illuminated Check Engine Light may indicate that the spark plugs are worn; this will cause intermittent misfire and damage to the coil packs.

(26 people reported this problem)

Ford Expedition Vehicles With This Problem

RepairPal Fair Price Estimate
$686-$1057
Detailed Estimates
RepairPal Verified
Average mileage: 172,742 (117,000–240,000)
Engines affected: 4.6L V8, 5.4L V8
9 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003, 2004, 2005
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Viewing 1-5 of 5 comments
Rough idle and hesitation. Cleaned PCV and found a crack in the elbow that attaches to the trottle body. New hose and problem gone.
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.