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The 'service engine soon' light is on in 1995 Chevy blazer code reads 'EVAP vacuum switch high voltage during ignition on' how do you go about fixing that?
Wiki User
∙ 12y ago
your vacuum switch is located on the intake manifold to the rear passenger side, it might be stuck open therefor putting out high voltage readings, that's how your computer fugures out if it's open or closed.
AnswerYou might try checking out your emission's systems (misspelled) because it might have something to do with that. AnswerCheck if you got hose off at air cleaner!:) Good Luck!Replace your gas cap! Yes, it might be that simple.
Wiki User
∙ 12y ago
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poor regulation
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DC
