will the computer reset after doing all this when the battrey has gone done and then recharged . because i have the same problem as number one grand marquie the feul pump come on but now it dont make

Asked by Jul 27, 2014 at 03:41 PM about the Mercury Grand Marquis

Question type: Maintenance & Repair

I guess I have to wait and let the computer reset its self I been trouble shooting for months a little at a time so any help is nice

2 Answers

97,125

If you have removed the battery for testing, recharge or repairs the ECM will reset back to factory default if over 30 minutes at the outside. On a Ford the fuel pump will come on for approx 5 seconds then turn off if the engine is not started or oil pressure is not present.

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