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2005 Ford Expedition XLT 5.4L Poor Idle Quality, Misfire, vacuum in crankcase
Posted to Ford Driveability on 8/12/2015 19 Replies

Customer driving down highway, heard a pop noise and lost power. Vehicle would not go over 30 mph. Pulled over and towed to shop. Started with misfire, then realilzed that crankcase is in a heavy vacuum. Remove the oil cap and vehicle dies. Remove dipstick and...

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Message Closed w/Summary

car Vehicle Data

2005 Ford Expedition XLT

VIN 1FMPU16535
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / crankcase vacuum
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Vacuum in Crankcase
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0304Cylinder 4 Misfire Detected
Message Closed w/Summary

car Vehicle Data

2005 Ford Expedition XLT

VIN 1FMPU16535
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / crankcase vacuum
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Vacuum in Crankcase
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0304Cylinder 4 Misfire Detected