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1998 Ford Expedition, Ignition - Primary Waveform
Posted to the Waveform Library on 1/15/2003

This is a #4 cylinder missfire above idle at snap throttle .Missfire induced from coolant leak at heater hose dripping onto coil#4.

 

car Vehicle Data

1998 Ford Expedition XLT 5.4L

Engine5.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad

car Vehicle Data

1998 Ford Expedition XLT 5.4L

Engine5.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad