Now that the temp here in Portland has gotten into the high 70s, low 80s, my car is running even warmer. It was pinging yesterday and the fan ran almost constantly on the way home from work. Still no coolant loss or any other sign of bad things happening. Needle running about 10:00 on the gauge. Maybe a little more. This is just too warm for my tastes. It is going to get into the mid 80s to 90s before long. How can I determine of my radiator or water pump are OK? I am ready to just replace the radiator but I do not want to just throw money at the problem as I do not have a lot.