Our Mustang keeps discharging the battery and then stops running, it has done it a few times now, I put new battery in still did it.. Runs with battery cables off. What could the problem be, and what could fix this any advise would be greatful, thankyou
Is the battery light on at any time? Have you had the alternator checked? Any new Audio equipment installed recently?
The fact that it runs with the battery cables off tells me the Alternator is probably doing it's job. If nothing has been added to the car that could cause battery drain when not running such as audio equipment and this just happened out of the blue I would suspect the battery cable and terminals for corrosion or damage. These car's wont run well when the charging system has issues and DC voltage is particular.
The best way to figure out what is going on would be to use a DVOM and but it on the battery when you know the battery is full, say after a charge and start the car and monitor the voltage readings. I know my car stays around the 14.4 to high 13 volt range. If when your monitoring the readings the voltage goes down and does not come back up them you have a issue as described above.
Is the battery light on at any time? Have you had the alternator checked? Any new Audio equipment installed recently?
The fact that it runs with the battery cables off tells me the Alternator is probably doing it's job. If nothing has been added to the car that could cause battery drain when not running such as audio equipment and this just happened out of the blue I would suspect the battery cable and terminals for corrosion or damage. These car's wont run well when the charging system has issues and DC voltage is particular.
The best way to figure out what is going on would be to use a DVOM and but it on the battery when you know the battery is full, say after a charge and start the car and monitor the voltage readings. I know my car stays around the 14.4 to high 13 volt range. If when your monitoring the readings the voltage goes down and does not come back up them you have a issue as described above.
Thankyou very much. I have tried a couple things, I have not tried any test on voltage drop, terminals seem to be clean, I'm still checking things. Thankyou