2cokeman

I know the 05-06 mustang PCM kills the battery after a certain amount of days as a security function, My o6 dies after about 2 weeks, the 07 5 speed can sit for days or weeks on end with no problems? I am curious if anyone knows anything about this?

Thanks!

mightymouse

I have an 07 and it does the same thing. there are things that rae still running even with the car just sitting. Don't want the battery to get drained then unhook it from the car while it is going to be sitting for more than a week.

marcuskeeler

First time I've heard a flat battery being referred to as a security function LMAO

It's your shaker radio.

157dB

How do you know this? Explain. Never heard of that reason.
Did the stealership give you that excuse for a dead battery?

jmk3

Mine has been fine since I started turning of radio before leavine car, I do it automatically know. Just left the car for 2 weeks while on vacation & she started right up.

Thurman

I have an 07, never happened to me.

2005MustangGtGuy

My car has sat for 4 weeks in 0 degree weather and started right up

28HopUp

I agree. Ford is replacing the one in our '05 vert cuz it drained the battery (it's a daily driver). Gotta love having a warranty.

howarmat

The shaker 1000 amps are known to cause a leak in the battery power

2cokeman

I was told by the Ford stealership about the battery and security and I was also told by others that they are full of it!! Also been told it is true for some type of anti-theft?? I was just curious if anyone else ever heard of it! I can't find anything about it in any literature at all??