Mechanics

92 STUMBLES UNDER ACCELERATION WHEN COLD. PROBLEM GOES AWAY AFTER ENGINE WARMS

1992 Ford Aerostar • 100 miles

No check engine light or codes.
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Tihargis
December 18, 2011.




http://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

Tiny
Rasmataz
Dec 18, 2011.


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