Question about Pontiac Grand Am

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My 1997 pontiac grand am just started flashing the check engine light and seems to be resting and using higher rpms. what should I be looking for?

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If the check engine light is flashing this indicates that a cylinder or cylinders are misfiring.If the rpms are increasing you may have a vacuum leak causing the misfire. Would check for any disconnected vacuum lines or a possible plenum/upper intake gasket leaking. To do this you can spray induction cleaner around the upper plenum to check and see if the gasket may be leaking.

Posted on Nov 14, 2010

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