JERKS

1991 Oldsmobile Ciera

Tiny

carolyn squires

March, 18, 2010 AT 7:23 AM

Engine Mechanical problem
1991 Oldsmobile Ciera 4 cyl All Wheel Drive Automatic 81,000 miles

i will be driving, and it jerks about two to three times. I tried filling up with new gas but same thing. I took it to a mechanic and he couldnt find it.

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1 Answer

Tiny

rasmataz

March, 18, 2010 AT 7:27 AM

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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