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2003 Ford F-150 Lariat 5.4L Differential vent
Posted to Ford PowerTrain on 4/23/2019 11 Replies

I had a vacuum whistle that I traced to the front differential. It had vacuum connected to the vent above the axle actuator of the differential and the pinion seal was whistling. Talk about fun trying to find that noise. My question, did it come from the f...

11 Replies Received (View Replies)

  Related Documents & Media  2003 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

2003 Ford F-150 Lariat

VIN 2FTRX08L03
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedDifferential Vent
ConditionsVacuum Whistle
Message Closed w/FIX

car Vehicle Data

2003 Ford F-150 Lariat

VIN 2FTRX08L03
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedDifferential Vent
ConditionsVacuum Whistle