Need help asap

2003 FORD FIVE HUNDRED
100,000 MILES • V8 • 4WD • AUTOMATIC
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JGARCIA93
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  • 1 POST
My ford f-250 desiel engine starts to buck when I'm doing 50mph. What could be the problem?
Apr 5, 2011 at 11:17 PM
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RASMATAZ
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  • 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.
Jun 21, 2011 at 10:14 AM