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1999 Ford Ranger XLT 4.0L MIL Lamp on
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...
FIX posted 3/1/2014
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Message Closed w/FIX
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31 Replies Received
31 Replies Received
Related Documents & Media | VIN | 1FTZR15X1X |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection / MFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | After 2 Road Tests |
| Misc. | 4WD |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1999 Ford Ranger XLT
| VIN | 1FTZR15X1X |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection / MFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | After 2 Road Tests |
| Misc. | 4WD |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video