I just recently noticed that my car's engine temp gauge would redline after a highway drive and then stopping at long lineup at the border. At highway speeds the temp gauge is around center. However, after I stop at the lineup the temp slowly starts to creep up until it redlines. Then, after a few minutes (still in the lineup) it would return to center. Then it would redline again. My engine seems to be running OK. Idle stays at around 750 RPM all the time. The FAN is kicking on and the radiator hose is HOT.
Anyone knows what's going on? Is it a bad temp sensor ?
Anyone knows what's going on? Is it a bad temp sensor ?