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1987 Ford F-150 Custom, Ignition - Secondary Waveform
Posted to the Waveform Library on 4/15/2005

Bad hall(pip) signal causing this condition. There was no misfiring (most of the time) at idle hot engine. Misfiring was light to severe under loaded conditions. Also had light to severe spark knock

 

car Vehicle Data

1987 Ford F-150 Custom 5.0L

Engine5.0 L / 8 cyl / GAS
Trans3-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad

car Vehicle Data

1987 Ford F-150 Custom 5.0L

Engine5.0 L / 8 cyl / GAS
Trans3-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemIgnition
Component
ConditionKnown Bad