Originally Posted by pyoungbl
EntrOpy, the kind of problems you are having may well be a loose connection to the battery. I'd check both the battery terminals and the ground connection on the engine. If any of them are loose, that's likely to be your problem.
Thanks Pyoungbl! I did see a few posts relating to battery terminals causing issues and how to resolve these, which I have checked and they are solid. Ground connector...that's something I haven't looked at. Def worth a try!