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My 2003 Pontiac grand am check engine light began flashing yesterday after filling tank with gas. Any ideas or easy solutions?
Wiki User
∙ 14y ago
The gas cap may not have been put back on correctly after you filled the tank. This can create a vapor lock which triggers that light to come on.
Give the gas cap a few right turns to tighten it & make sure you hear several "clicks". Then drive as usual for several miles and the check engine light may go out. If it doesn't, give your auto service center a call or make an appt. as soon as possible.
Hope this helps!
The vapor lock resulting from the improper cap replacement does not cause the light to flash. It sounds like a more serious problem. Normally these are resulting from clogged fuel filters or vacuum leaks in the line.
Wiki User
∙ 14y ago
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