Power problem, 1999 f350 7.3 powerstroke

Tiny
TIM CASEBEER
  • MEMBER
  • 1999 FORD F-350
  • V8
  • 4WD
  • AUTOMATIC
Lack of power when pulling hills with or without trailer. Max out at 20 to 25 mph no matter what the rpms are, once it shifts if it does then it seems to do better, seems like it doesn't know when to shift. Needs ideas quickly.
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Monday, February 7th, 2011 AT 5:27 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating********, bogging, misfiring 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.
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 and keep testing.
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Thursday, March 10th, 2011 AT 4:10 AM

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