1990 mustang gt will not stay runing have to give it gas hard to start
Check the fuel pressure with a gage and check the fuel volume as if either one is bad can cause this problem.
SOURCE: Car will not stay on after jump start.
The battery is there to start the vehicle, once running the alternator takes over and provides the power for all electrical. It sounds like your alternator went out on you. Thats is where I would start. Hope this helps
Testimonial: "Thank you very much. I'll start there. "
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