2001 Mercury Marquis Running out of gas

2001 MERCURY MARQUIS
150,000 MILES • V8 • 2WD • AUTOMATIC
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KRWHARTON89
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Hello i have a 01 grand marquis and the problem is that the car ran out of gas one day awhile back and the gauge said it had a quarter tank left so we put gas in it and it ran fine, now today the same thing happened but the gauge said it had a half of a tank left. it ran very good no problems but this is the second time this has happened so i dont know if it is the float in the tank or the sending unit fuel pump can someone please help

i just dont want to start taking stuff off the car thank you
Aug 2, 2010 at 5:23 PM
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RASMATAZ
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Check the fuel pressure if its within specs-could be the fuel filter/intank pick-up sock or the fuel pump
Aug 2, 2010 at 5:28 PM
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KRWHARTON89
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  • 3 POSTS
now how do i check the fuel pressure
Aug 2, 2010 at 6:08 PM
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RASMATAZ
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Get a repair manual and fuel pressure tester and hook it up at the fuel rail test port
Aug 3, 2010 at 2:14 AM
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KRWHARTON89
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Thank you, see i drove it today and it runs perfect so i think i am gonna try and replace the fuel filter first i think if it was the fuel pump it wouldnt start at all right?
Aug 3, 2010 at 3:48 PM