1999 Ford Ranger it hesitates

Tiny
HEYGRAPE
  • MEMBER
  • 1999 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 82,000 MILES
I had a tune-up done with new spark plugs and whatever else they do. I had a new fuel filter put on and fuel line flushed. It still hesitates.
Saturday, March 20th, 2010 AT 5:23 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below.

Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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.
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Saturday, March 20th, 2010 AT 6:15 PM

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