What could the problem be

Tiny
EVFON4211
  • MEMBER
  • 1997 FORD F-150
  • 75,000 MILES
Truck starts and runs good but is slow to accelerate but when it does it holds the speed and will speed up as it shouldacceleration problems- Enter a Question or Subject and Click Search -
Saturday, September 3rd, 2011 AT 3:44 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
https://www.2carpros.com/articles/engine-hesitates

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
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Saturday, September 3rd, 2011 AT 3:50 PM

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