2002 Ford Ranger engine hesitation

81,000 MILES • 4 CYL • 2WD • AUTOMATIC
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LCOSTILLA
  • MEMBER
  • 1 POST
Why does my Ford Ranger hesitate and jerk as I accelerate, especially at 50-60 mph?
Feb 3, 2010 at 11:48 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test all the following listed below:

Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Cap and rotor

Note:If it doesn't apply disregard.
Feb 3, 2010 at 11:49 AM
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