I have been experiencing some problems with the battery in my car. the alternator and battery was replaced two months ago but the battery still dies. the car my be good a few days when being used but then it just wont start. the car would not start or the battery is completely dead. wondering if this is a common thing for this style of mustangs and if its a simple fix.

 

It would not be anything anything specific to this year of mustang considering the basic concept is similar for the most part.
Two things i would make sure first, even though they are new, i would have the battery load tested, and to see if it will hold a charge, and two, have the altenator tested aswell. A place like Canadian Tire does both testes for free.
If those are both good, check for bad grounds.
Also for the heck of it, check your terminals, and connectors to the battery. Sometimes if they are not clean, this would cause issues aswell.

 

Do you have any aftermarket accessories such as remote start, alarm, stereo equipment, gauges, etc. if so eliminate those first as they can cause a draw.

 

no the car has no added electrical mods

 

I have an 02 Mustang that has a battery drain of some sort, no alarm sytem or extras other than curb alert that draws 35 milliamps only. Anyone else finding this is a problem for this era of Stang?