Mechanics

EXCESSIVE GAS USAGE, BLOWING WHITE GAS SMELLING EXHAUST, BLACK CARBON BUILD UP OUT EXHAUST,

1992 Buick Other • 10,000 miles

I have a 1992 bravada 4.3 vortech, I replaced plugs, cleaned oyxgen sensor, what else can it be?
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D55price
December 15, 2011.



Sounds like the spider assy under the upper plenum is leaking open it up and investigate

Rasmataz
Dec 15, 2011.