battery will not hold a charge on my 03 grand marqus

Asked by Nov 24, 2016 at 09:51 AM about the 2003 Mercury Grand Marquis LSE

Question type: Maintenance & Repair

I replaced the battery and altanater and it still will not hold a charge.also the door lock on the passage rear will not work by either key or hand.the windows will not go up or down have replace switch in all doors I am at a loss

2 Answers

242,255

Sounds like you have a wiring issue. So that is draining your battery. It's called a parasitic draw or drain. If your handy with a multimeter and pulling fuses, go to youtube and search "Parasitic draw"

1 of 1 people found this helpful.
1,255

I didn't know about the youtube thing. I've described the procedure so many times on this site, one can see them on similar threads.

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