2003 ford explorer hesitation.

2003 FORD EXPLORER
100,000 MILES
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JJEZONE
  • MEMBER
  • 1 POST
Only happens coming off of cruise around 40 mpr during 3/4 pedal acceleration.
Cleaned Mass air flow. No change
Drove with vacuum line off of Erg. no change
Dec 18, 2011 at 5:50 PM
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
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

https://www.2carpros.com/articles/engine-hesitates
Dec 18, 2011 at 5:56 PM
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