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2000 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 9/25/2011 37 Replies

poor idle quality with P0401 code. cleaned EGR system, cleaned IAC valve, cleaned TB, triple checked EGR system vaccum routing. Live data shows that all the O2 sensors are extremly lazy. O2 sensors will show appx 0.030v and switch to 0.040 very slowly and some...

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  Related Documents & Media  2000 Ford Expedition XLT

 
Message Closed w/FIX

car Vehicle Data

2000 Ford Expedition XLT

VIN 1FMRU1664Y
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0401EGR System Insufficient Flow Detected
Message Closed w/FIX

car Vehicle Data

2000 Ford Expedition XLT

VIN 1FMRU1664Y
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0401EGR System Insufficient Flow Detected