904 Neutral Safety Switch

The switch make a connection like any switch. It can fail.

That's true but in his 2nd posting he said it didn't even start when he bypassed the switch. Only when he bypassed it at the relay did it start. That's why it has to be a wiring problem between the NSS and relay.

I know napa has the 3 post combination switch. If they stock the single post/function switch that's news to me.

That's true. They don't sell the old single pole switch anymore.