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1999 Ford F-150 4.2L Poor Idle Quality, Stall, MIL Lamp on
Posted to Ford Driveability on 2/8/2009 38 Replies

Hello and thank you inadvance. I Teach a high school auto class and one of the students has a 1999 F 150 4.2l, [...] has the follwing codes P0171 and P0174 lean exhaust on both banks and a unstable idle after a hot soak restart.

We have not been able to see a...

38 Replies Received (View Replies)

  Related Documents & Media  1999 Ford F-150

 
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150

VIN 1FTZS1725X
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, MIL Lamp On
OccursHot, After a Hot Soak

Trouble Codes

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

car Vehicle Data

1999 Ford F-150

VIN 1FTZS1725X
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, MIL Lamp On
OccursHot, After a Hot Soak

Trouble Codes

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