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Old 07-14-2003, 12:49 PM   #1
rockman20
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Join Date: Apr 2003
Location: North Dakota
Posts: 472
Extra gas entering an engine causes black smoke. White smoke means blown headgasket or something causing coolant to enter the combustion chambers.

I would start at the carb. Sounds like it is possible that the needle/seat assembly isn't working properly or that they have the float set too high.

But this would be with no computer. With a computer, I don't know where to start. I would probably start with the O2 sensor. Seems like that damn thing causes more problems. I would also check to find out how to pull any error codes from the computer as well.
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1993 Chevy Silverado C3500 1 ton dually
1994 Honda Civic
1969 Oldsmobile Cutlass S
1953 IH Farmall Super M
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1992 Subaru Loyal
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