1989 mustang won't start - 1989 Ford Mustang

There are several answers depending on whether the engine cranks or not. If it does not crank, check the brake pedal safety switch on the pedal lever. There is an inertia switch which may be in the trunk on your model and this will cut off the power to the fuel pump. Newer year models have the inertia switch by the front kickpanel. In either case a push button on it will restore power.

That being said, if you use a little starting fluid and the engine tries to run, you know it has a fuel shortage problem.