1984 Porsche 944 won't start won't crank?

Easiest reason would be that you have an empty battery. Once you have ruled that out by supplying power from another car, I'd say best to call your road club or a local garage... Easiest reason would be that you have an empty battery. Once you have ruled that out by supplying power from another car, I'd say best to call your road club or a local garage...