anyone have power failure 2008 P71 Crown Victoria

Asked by Feb 14, 2016 at 11:07 PM about the 2008 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

My 2008 Crown Vic p71 if I do not start it daily the battery goes dead. I had
the battery replaced and it still goes dead anywhere from 1 - 4 days if I do not
start it. I took it to an electrical shop & the mechanic said it was a bad battery.
This after I replaced the battery not 4 months before. But I replaced it anyway.  
Any suggestions

4 Answers

6,665

glove box light on~

6,665

https://www.youtube.com/watch?v=KF1gijj03_0

1 people found this helpful.
118,235

As it is a later model car I would recommend that you take it to a place that can do a battery draw test, on some vehicles the alternators diodes go bad, they will charge but when the key is turned off they allow the voltage to feedback into the alternator thus killing the battery, that may or may not be your problem but it is something that happens more than you realize.

Not sure if your still looking for answers but i would say check the wire harness for shorts. These are notorious for degrated wire harnesses. Helped changed my dads after a crash and all his electrical problems went away. Moral is may people have wiring problems with these crown vics they just deal with.

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