Question about 1992 Mercury Grand Marquis

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1989 mercury Grand Marquis fuel system

89' Merc G.Marq. rotates but wont start. no sound from the pump, straight wired the pump, pump runs but wont run when properly connected to harness at the tank. change fuse, where's the fuel pump relay on this car?

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  • 3 more comments 
  • Anonymous Mar 12, 2014

    the fuel gage quit working after I filled the tank

  • Anonymous Mar 12, 2014

    after a fill up my gas gage quit working

  • Anonymous Mar 22, 2014

    no power to the fuel pump on a 1989 wrangler

  • Anonymous Mar 25, 2014

    changed fuel pump,filter and relay but still acts like it runs out of gas ,but when I turn the key off and on runs fine for few minutes

  • Anonymous Mar 28, 2014

    it's slow acceleration, pulsates and shudders up hills, chokes and gags at 80mph which is its top speed. 4.6l mercury grand marq 96.

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  • Mercury Master
  • 64,052 Answers

The fuel pump relay is under the hood in the MAXI fuse box, it is a black box with a huge wiring bundle comming out of it.

Posted on Sep 04, 2008

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