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Will a faulty fuel pump vapor lock a gas line

(1990 Mercury Grand Marquis)
in Sweetwater, OK on April 04, 2010
when it gets hot it dies
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Popular Answer
on April 04, 2010
vapor lock happens when the fuel boils and creates air in the system. with the new cars, increases fuel pressure stops that process. it sounds like you have a fuel pump failing when it gets hot. have a pro diag it for you to confirm

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