1993 Jeep Grand Cherokee Q&A

1993 Jeep Grand Cherokee Question: After about 15 miles I get intermittent miss and it will die when coasting.

It fires right back up after it dies but the intermittent miss is still there until it has sat for a couple hours then it will run fine for about 15 miles. It has new tune up plugs wires cap & rotor. new fuel filter and fuel pressure regulator. no check engine lights. -
Answer 1
Crank sensor is most likely to blame -
Comment 1
I have also noticed a voltage drop on the in dash volt meter at the same time from around 13.4 volt to 12.4 volt. could this be related? -
Answer 2
I have seem many Jeep crank sensors fail. Usually when they get hot. I would have a professional check it to be sure. -