What_is_slow
Member
- Joined
- Oct 24, 2018
- Threads
- 3
- Messages
- 20
- Reaction score
- 8
- Location
- San Diego, Ca
- First Name
- Chris
- Vehicle(s)
- 2018 Mustang GT Premium Plus PP1 MT
- Thread starter
- #1
Purchased my 2018 GT Premium PP1 new October 18th 2018, and three days after having it, the battery died. Contacted the dealer and they said the car was on the lot for 7-9 months so it might have been low, and they offered to charge it, and test the battery, charging system, and check for unusual current draw. They charged the battery, ran tests, and they said everything came back normal. Then it had to go to the paint shop for some extremely minor scuffs on the front bumper that the dealership insisted they have corrected to provide me with a flawless new car. Let my car there, and then the next day, the body shop called the dealer stating the battery was dead. The paint shop had it for roughly a month (a whole other story) and had to constantly keep jumping the battery. In the middle of that month of paint repair, the dealer had replaced the "charging system", which I am assuming is just the alternator. The battery has still been dying on occasion, so I sent it back to the dealer, which said they could not see anything wrong. So I took the car back, drove it, went to start it the next morning, dead battery. I jumped it and drove it to the dealer and requested a new battery that they put in without any question. That was on 1/8/19.
For those who dont have stargard in their car, you can monitor the voltage while driving, and it will occasionally record a "Heartbeat" which shows the voltage. When when driving the car, the voltage is anywhere between 14.65 and 14.77. When it is parked, it has gone as low as 11.7 volts. This is with a new battery, and I hope its not a lemon battery. The car has been starting fine with the low voltage, but it seems to be getting significantly lower every day, even with the new battery. At this point (1/12/18), I have not had to jump the car. Does anyone know what the lowest voltage the battery will be to turn the engine over? I have read that ford has a "smart charging system", and maybe with the new battery, the lower voltage is "normal", but I have no idea since I have not had the car functioning properly long enough to know. The only mods that I have on the car were put on after the dead battery issue. Roush intake, MBRP Cat back, throttle spacer, and wheel spacers. The only thing that would have any affect on the electrical system is the intake, which should not need power when the car is off. I also disabled the wifi, in case that was causing the issue.
-Car has not died while driving
-Car has had dead battery many times (8 hours after a 2 1/2 hour drive)
-Car has new "charging system" (unsure why they replaced this before the battery)
-Car has new battery
-Car has no electrical modifications
-Car has is driven daily
A friend of mine who is an electrical engineer says that the fact that the battery voltage drops from 12.6 to 12.07 volts in a matter of 4 hours says that there is something that is causing a draw. With all of the electronics that are in these cars, it could be anything. If the battery ends up dying again, I will be forced to bring it back to the dealer. Has anyone encountered similar problems with their cars? Any help or advice would be appreciated. Thanks!
For those who dont have stargard in their car, you can monitor the voltage while driving, and it will occasionally record a "Heartbeat" which shows the voltage. When when driving the car, the voltage is anywhere between 14.65 and 14.77. When it is parked, it has gone as low as 11.7 volts. This is with a new battery, and I hope its not a lemon battery. The car has been starting fine with the low voltage, but it seems to be getting significantly lower every day, even with the new battery. At this point (1/12/18), I have not had to jump the car. Does anyone know what the lowest voltage the battery will be to turn the engine over? I have read that ford has a "smart charging system", and maybe with the new battery, the lower voltage is "normal", but I have no idea since I have not had the car functioning properly long enough to know. The only mods that I have on the car were put on after the dead battery issue. Roush intake, MBRP Cat back, throttle spacer, and wheel spacers. The only thing that would have any affect on the electrical system is the intake, which should not need power when the car is off. I also disabled the wifi, in case that was causing the issue.
-Car has not died while driving
-Car has had dead battery many times (8 hours after a 2 1/2 hour drive)
-Car has new "charging system" (unsure why they replaced this before the battery)
-Car has new battery
-Car has no electrical modifications
-Car has is driven daily
A friend of mine who is an electrical engineer says that the fact that the battery voltage drops from 12.6 to 12.07 volts in a matter of 4 hours says that there is something that is causing a draw. With all of the electronics that are in these cars, it could be anything. If the battery ends up dying again, I will be forced to bring it back to the dealer. Has anyone encountered similar problems with their cars? Any help or advice would be appreciated. Thanks!
Sponsored