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

 

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Visitor, Sweetwater, OK, April 04, 2010, 13:58

when it gets hot it dies

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  • Answer #1

    mastertech6371 April 04, 2010, 15:32
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     Master

    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

    Roy

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