My daughter has a 2007 Accord LX 4 cylinder and if her a/c is left in the on position and she attempts to start the car, it will not crank. She can put the a/c in the off position and the car starts just fine. While driving, if she turns the a/c on, then the car has a jerking pattern like it is under powered.
This started about 6 months or so ago and she had the battery replaced. That seemed to have fixed the problem until now, as it has started having the same issues.
Does anyone have a permanent solution that could be shared?

 

Yes the alternator. Have it checked out to make sure it's not on its last leg. If you have a power issue like this always get battery and alternator test. Initially it probably was your alternator under providing power and putting a new battery in helped extend the inevitable.

 

I will have her get it checked. This is good news!! Thank you!