Somethings not right!

[WardL]

Plenty of good words of wisdom here, thanks! The Motorad Fail-Safe 180 F thermostat had failed open. The parts store only had a 192 F and Like Frank, I was thinking it would be OK. After getting back home I remembered the Roush book saying 180 F. After looking online, it seems the fail-safe thermostats have a tendency to fail regularly. One guy said he was on his 5th fail-safe thermostat and was happy with them! Maybe anytime the temps get 20 F above the set point they fail open. I don't want to be changing my thermostat every time it gets hot. I am going to get a 180 F Motorcraft and forget about it. I'll have to dig pretty deep as they cost $15, but maybe that is why they work well. LOL....

I replaced the thermostat last year because it was set up with a thermostat that is designed to be partially open at a minimum and with NO bypass hose around the thermostat. I had purchased my Cobra from a very hot climate (Florida) and it was set for max cooling all the time. Roush advises to always use a thermostat bypass. I set it up with a bypass hose and a fail-safe thermostat.

Again, thanks for the good info!