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Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 47945
Experience:  16 years experience
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Ford Taurus SE 99 Taurus, wont start/restart when engine

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99 Taurus, won't start/restart when engine is hot, either from driving or sitting on asphalt. Engine code for vacuum failure on gas tank, but mechanic says that would not cause the starting problem. Suggestions?

Hello, I'm Chris.
I will do my best to answer your question fast and accurate using the info you have provided. Thanks for visiting Just Answer.


You need to check the fuel pressure next time its hot and will not start, in the event it shows below specs then the source of your concern is the fuel pump is bad and starting to lock up when its hot and when the fuel is hot. This is the beginning sign of pump fatigue.


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Customer: replied 6 years ago.
I wondered about the fuel pump, but would that drag out over two years? The problem with checking the fuel pressure when it won't start is that I can't get to the mechanic until it has cooled. Had it towed once, but of course it started by the time I got there. It always starts when I get there. Would a problem with the pressure show up if the engine was just hot and still running? If it wasn't such a pricey repair I would have just changed it out by now.
Your options are to drive it alot on the hottest day and then go to the shop and explain to them to do a fuel test, then shut it off and hope it will not restart, if it starts then shut it off and try again. If you cant get it to fail then you will have to take a chance on it being the pump or get your own gauge and open the hood and check the fuel pressure. Yes one can fail over a long period of time.
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