Mechanics

URGENT REPAIR NEEDED

1994 Chevrolet Astro • 6 cylinder 2WD Automatic • 250,000 miles

Van is over fueling spits and sputters and won't stay running
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Jray739
December 31, 2010.




If the check engine light is on then find out what codes and start there. Sounds like a map sensor, maybe a bad vac leak.
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How did you determine that it's overfueling?

Wrenchtech
Dec 31, 2010.
Yes this would be nice to know.

SOUNDS LIKE THE FUEL INJECTION OR WHAT THEY CALL(CMFI) IT IS LOCATED UNDER THE PLENUM OR UPPER INTAKE MANIFOLD. WHAT USUALLY HAPPENS IS THE PLASTIC FUEL LINE THAT GOES TO THE CMFI UNIT CRACKS AND FLOODS THE LOWER INTAKE MANIFOLD AND ALL THE GAS FLOODS ALL CYLINDERS. THIS IS A VERY COMMON PROBLEM USUALLY AFTER ABOUT 180,000 MILES. IT SHOULD HAVE BEEN A RECALL!

Tiny
WINGNUT912
Nov 11, 2011.

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