I have a 1989 mustang 5.0, the other day i accidentally left my headlights on and killed the battery. After jump starting, car now is sputtering and wants to stall out some times. what could this be?
Check your alternator,if not bad battery.
Or the battery is very low on voltage, jump starting it sometimes won't let the car stay running since it isn;t charged up enough. Charge it up/trickle charger or replace.
Search Ford Mustang Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Ford Mustang Experts