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1990 Mercury Grand Marquis Question: will a faulty fuel pump vapor lock a gas line



Visitor, Sweetwater, OK, April 04, 2010, 16:58

when it gets hot it dies

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  • Answer #1

    April 04, 2010, 18:32

    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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