I'm having some cooling issues. The car has an oversize aluminum radiator which was on the car when I bought it last week. I've changed out the thermostat and put in a 180° and also replaced the temp sending unit. I did notice that it had almost all coolant in it so I drained some of it and put in 50/50 water along with a bottle of water wetter. From what I can tell, the fan clutch is good and the fan itself looks good too. This morning I got stuck in traffic and the temp needle rose all the way up to the notch just below the red. I wasn't even running the air. also when I got to the office, I popped the hood and shot the thermostat housing with a infrared thermometer and it was reading 210° which doesn't seem that hot for these cars.
What am I missing?
What am I missing?