Thanks BillG
The previous owners of my car were very diligent, I am certain it has had all the patches/fixes applied to it. I think the float probably is stuck in the reservoir, my issue is that the switch bypass would fix that as well (wouldn’t it?). I don’t know why I didn’t call him first, but a mechanic that worked on my Prius a bunch and told me he also worked on Volts said he could fix this and definitely for less than $733. My current plan is to have the Chevy dealer reset all the codes, pay the one hour diagnostic fee and drive the car home. If the code doesn’t come back right away, I’ll let the car sit until the bypass switch arrives and install it myself. If the code comes back, I’ll take it into my independent shop, have him reset the codes and install the bypass switch. Replacing the whole reservoir for that kind of money is bonkers if I can avoid it...
Doug