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2002 Ford F-150 disappointing performance

Tiny
BKELLER82
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 80,200 MILES
2002 4.6 AOD 2WD. 80,200. Recently replaced plugs, and fuel filter. Had vacuum hose replaced not long ago. Idles smoothe, engine runs strong, but when I 'Get on it' it just seems to be lacking somewhere. Any pointers towards getting back lost horsepower?
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Thursday, July 22nd, 2010 AT 5:00 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it.
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Thursday, July 22nd, 2010 AT 5:06 PM

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