Question about 1990 Chevrolet Corvette

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I ahve a 1989 Chevy Suburban and for the past year when the gas gauge reached 3/4 tank I filled up with gas (Regular) and I let the Suburban set up for two moths and I believe the gas went bad. I screwed up and put to much Sta-Bil in tank. Now the motor is skipping. Any sugeggestions?

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HELLO THERE:
I would first get the fuel filter changed and see what this does
also you may have to get rid of this tank of fuel if the ratio is too bad from the sta bil
you may also want to change the plugs and have the injection system cleaned if this applies if not get some carb cleaner and clean it really good ok and this should get you going like it should
hope this is very helpful for you
best regards michael

Posted on Nov 16, 2009

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Posted on Jan 02, 2017

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