Trouble Codes

2001 FORD F-150
108,000 MILES • 6 CYL • 2WD • AUTOMATIC
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LINDATBIRD
  • MEMBER
  • 1 POST
I have a 2001 Ford F-150 2W V-6. Receiving trouble code readings P0171 and P0174. I need to know what to check to correct problem. Fuel and air filters have been replaced recently. Vehicle misses intermittantly upon acceleration especially on steep grades.
Feb 24, 2011 at 8:41 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Lean fuel condition could be caused by one of the following below:

1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
Mar 19, 2011 at 5:01 PM
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