Mechanics

ENGINE STALLING

1991 Chevrolet Astro • 6 cylinder 2WD Automatic • 205 miles

A 91 chevy c1500 4.3 v6 that stalls out in gear and sounds like its idling low. Any possibilities on what could be wrong?
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Mcpherson1981
June 6, 2011.




How long since a tune-up? Any applicable mil codes? You can check those yourself. If it is only an idle issue, clean the throttle-body and idle air control.
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JDL
Jun 6, 2011.
Its not a astro van.I dont know how that got on there. Its a 4.3 v6 c 1500 pick up


Tiny
Mcpherson1981
Jun 6, 2011.
I see, the info is still valid. Let us know.


JDL
Jun 6, 2011.
It was just tuned up from the previous owner and he said it never did this until it was tuned up. Im thinkin the firing order is wrong


Tiny
Mcpherson1981
Jun 6, 2011.
OK, below is the firing order.

165432


JDL
Jun 6, 2011.
What a bout a bad valve or piston?


Tiny
Mcpherson1981
Jun 6, 2011.
If you think you have a dead cylinder, check for a dead cylinder. You kill the cylinders one at a time, quickly, If the cylinder you kill has very little or no effect on the idle rpms, that cylinder is dead or weak.

What about the firing order? You seemed to think that was the problem?


JDL
Jun 6, 2011.

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