JohnnyFish
GOLD Star
Coming across Arkansas yesterday, my new-to-me Scan Gauge 2 on my new-to-me truck showed a temperature spike from the normal 184-195 to 220, while the Toyota gauge didn't move. Did I have a steam pocket near the temperature sensor that feeds the ECU? Any idea what's going on here? Once the temperature spiked, it couldn't recover until I stopped for 20 minutes or so to let the truck cool.