Mechanics

HESATION

1992 Jeep YJ • 4 cylinder 4WD Manual • 200,001 miles

My jeep wrangler seems to be fouling out while im driving. The promblem comes and goes at any giving time. I have changed the air filter checked the plug wires cap and rotor. When it is at night and the issue happens there is NO flicker in the lights. If it is chuging and I come to a stop I have to keep it running or it might quit.
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Micguyfi@gmail.com
January 4, 2011.



Lack of acceleration, chugging, hesitating********, bogging, misfiring etc. 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.

Rasmataz
Mar 19, 2011.