fuel pump sounds

1999 MERCURY MARQUIS
V8
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MTAZMITH
  • MEMBER
  • 1 POST
should i hear a fuel pump sound when i turn the key on in my 1999 mercury grand marquis
Feb 16, 2011 at 12:21 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
You suppose to hear it when key at run position-if not check the fuel pump fuse, fuel pump relay and the inertia switch-could also be the fuel pump itself
Feb 16, 2011 at 12:24 PM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
Only for the first 2 seconds if the engine isn't running. It stays on after the engine starts.
Feb 16, 2011 at 12:50 PM
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