Mercury Grand Marquis: Changed the fuel pump in my 1999 Feb 11, 2012Changed the fuel pump in my 1999 mercury grand Marquis and the relay, and the fuel pump is still not getting any power - Answered by a verified Mercury Mechanic1999 Mercury Marquis. Fuel pump relay would not kick inDec 26, 20111999 mercury grand Marquis: quit working.I find the fuseOct 27, 20091999 mercury grand marquis: stall fuel pump - ASAP Where is the fuel pump relay and or fuse on a 2004 grand See more results Part 2 -How to Test the Fuel Pump -No Start Test (Ford 4 Mar 18, 2011Page 2 of 3: How to Test the Fuel Pump -No Start Test (Ford 4, 5). Easy to attach a Fuel Pressure Gauge to the Fuel System to test the Fuel Pump. If the Fuel Pressure Gauge registered 0 PSI. Symptoms of BAD Fuel Pump.
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