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1999 Mercury Mountaineer 4.0L MIL Lamp on
Posted to Ford Driveability on 12/18/2002 11 Replies

Has anyone seen the 4.0L with intake problems like on the 3.8L with the same lean codes Truck runs fine and it took [...] to set the code

11 Replies Received (View Replies)

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car Vehicle Data

1999 Mercury Mountaineer

VIN 4M2ZU54E9X
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed

car Vehicle Data

1999 Mercury Mountaineer

VIN 4M2ZU54E9X
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)