The temperature gauge in this car doesn't have numbers. It's more like a glorified idiot light with white on the left, red on the right and reads "normal" in between. The needle was just about at the red and, yes, the A/C was off. When I was driving home that night it was so cool that I don't believe it should never have gotten to the red while I was driving unless something was wrong. Shouldn't the needle stay about in the middle of "normal" (more or less) when driving at normal speed on a level freeway with the outside air temperature at 70 degrees or less. I did notice a slight bulge in the hose right at the front of the thermostat (where I had to disconnect it to access the sensor to replace it) but this may be normal for all I know because I really never payed attention to it before. I don't even know which way the coolant flows. If that is into the thermostat then maybe the thermostat wasn't opening? The temperature gauge hasn't worked for probably 8 months or more so I don't know if this car has been running hot for a long time or not. Heck, I don't even know if it's really hot or the gauge is just wacky. I usually only drive this car a couple of weekends a month and mostly on the freeway for about an hour at a stretch. -Dan