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1994 Chevy Astro stutterin Astro

Tiny
POOPFISH
  • MEMBER
  • 1994 CHEVROLET ASTRO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
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
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Saturday, March 6th, 2010 AT 8:16 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 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.
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Saturday, March 6th, 2010 AT 8:53 PM

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