Car cutting off.
I gave a boost to a friend and the car will now start
sporadically and then cut off. The battery does not
hold a charge.
Did you jump the other car with your engine running? If so you may have caused a voltage feed back that could have harmed the PCM. Now your battery won't hold a charge, this could have been caused by the extra amount of energy required to crank the other engine, when a battery is getting towards the end of it's life sometimes a larger load than is normally needed will short out a cell and then that causes the drain internally on the battery, a load test of your battery will tell the tale on that.
Have your battery load tested. Don't jump start with your engine running.
Search Chrysler 300 Questions
Chrysler 300 Experts
Related Models For Sale
Used Cars For Sale