Mechanics

WHY IS MY ENGINE HESITATING DURING EXCELERATION?

2001 Ford F-150 • 110,000 miles

During re-exceleration my engine hesitates. I changed the plugs about a year ago and the problem stopped. It recently started up again. I figured it was the same issue so I changed the plugs again on 12/11/11. This time it did not solve the problem. I have read that to fix the problem I should have the plugs changed, etc. What should I check first, second, and so on? Please advise. Any assistance that you could provide would be greatly appreciated!

Sincerely,
Mark D. Hanks
Master Sergeant (Retired)
USMC
AD
Avatar
Topdawg
December 13, 2011.



http://www.2carpros.com/articles/engine-hesitates

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.

Rasmataz
Dec 13, 2011.


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