1998 Ford Expedition the truck jerks when it changes gears

140,000 MILES • V8 • 4WD • AUTOMATIC
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ZILLAMAN
  • MEMBER
  • 1 POST
the truck revs up and then jerks when it changes gears
Oct 9, 2010 at 3:07 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Lack of acceleration,chugging,hesitating,jerking,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.
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
Oct 9, 2010 at 7:52 PM
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