1994 Chevy Astro stutterin astro

1994 CHEVROLET ASTRO

100,000 MILES • 6 CYL • 2WD • AUTOMATIC

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This problem started on the highway at 60MPH or more, the van would stutter. The other day it done it in reverse and has started to do it at lower speeds. To explain this stuttering, it jerks as if changing gears but doesn't, the van jerks until I release the gas then it stops. Please I am at a loss.
Thanks

Mar 6, 2010 at 8:16 PM

RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

Hesitating,lack of acceleration,bogging,chugging 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.

Mar 6, 2010 at 8:53 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.