coolant temperature

Hello, I need some advice on my 2000 271k miles LC. Some background, this past summer car was fully loaded on a long drive to Texas from Arizona, in the long steep hills outside the valley of Arizona the dash temp gauge was getting real hot close to the red but never touched the red, so I...

Hello, After car is warm, coolant gauge starts to rise randomly then quickly drop back to normal. After driving for a while, hitting the gas will cause it to go up, but letting off the gas will bring it back to normal. This just started happening Parts replaced before the problem...