Hey guys well my car doesnt over heat or anything but i take notice that every time i go down a hill my temp gauge goes to cold,
I visually inspeced the etc and it check to be ok,
any suggestions? does my cooling system need to be bleed?

thanks..

 

ive never ehard of it doing this going down a hill but the temp gauge malfunctioning is usually the thermostat. cause when mine went bad it wuld warm up, but after i drove it for 30 seconds ot wuld go back to almost cold, and then heat up again at red lights. what does the coolant look like?

 

coolant ok green drive the car 100 miles a day and only on decline temp goes cold and as soon as i level out temp goes back up.