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2008 Ford F-250 Super Duty XLT 6.4L Poor Idle Quality
Posted to Ford Driveability on 4/9/2018 4 Replies

This truck came to our shop with a rough idle with heavy white smoke but not all the time. The truck runs great on the road. Codes for #2 and #8 cylinder contribution. When we canceled #8 injector the smoke cleared up. Replaced #2,4,6&8 injectors and repla...

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car Vehicle Data

2008 Ford F-250 Super Duty XLT

VIN 1FTSW21R68
Engine6.4 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIntermittently

Trouble Codes

P1336Crankshaft Speed Fluctuation Sensor Circuit Malfunction
Open Help Request

car Vehicle Data

2008 Ford F-250 Super Duty XLT

VIN 1FTSW21R68
Engine6.4 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursIntermittently

Trouble Codes

P1336Crankshaft Speed Fluctuation Sensor Circuit Malfunction