× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1999 Ford Ranger XLT 4.0L MIL Lamp on
Posted to Ford Driveability on 2/11/2014 31 Replies

Vehicle came in with drivability issues. Scan showed P0171 & P0174 codes. Smoked engine and found bad upper intake gaskets. Replaced gaskets and re-smoked. No new smoke evident. Cleared codes and road tested. After 2 drive cycles P0171 & P0174 returned. The LT...

31 Replies Received (View Replies)

  Related Documents & Media  1999 Ford Ranger XLT

 
Message Closed w/FIX

car Vehicle Data

1999 Ford Ranger XLT

VIN 1FTZR15X1X
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter 2 Road Tests
Misc.4WD

Trouble Codes

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

car Vehicle Data

1999 Ford Ranger XLT

VIN 1FTZR15X1X
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter 2 Road Tests
Misc.4WD

Trouble Codes

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