Bad voltage limiter? (New owner!)

Wow,thanks for the quick responses! Thanks for the tip about the potentially bad thermostat - I hadn't considered that.

Yeah, I thought the repair quote was insane, but my mom is 80 - hard to know if I got all the details. :) She sent me on my way with the wrong gas cap key. Heh.

So when grounding out the sending unit and temp sender, I'm guessing I need to have the key on, or no? Hopefully I'll get a chance to quickly check these two tonight after work. And I was afraid I'd have to drop the tank, so good to know I can replace the sending unit more easily.

Regards,

John