2003 Pontiac Grand Prix "temp gage goes down" Questions

...temp. gage goes up to 210 after being in traffic for like 10 min it goes up to 210 but once i get going again it goes down. i have been told that it might be a head gasket. could it possible be the ...

Driving the temp gage goes into red area, pull over keep car running the temp gage goes down, blowing cold air for heat2001 Chevy Cavalier Could be a plugged heater core, or bad water pump.

temp gage and gas gage acting up temp gage goes up and down and the fan is running. red light stays on for 8 to 10 minutes when i start my 99 oldsmobile intrigue.

...temp gage goes up, the car still runs normal and everything is fine. It doesn't act like its overheating, even though it says it is. Could it be a temp sensor? have the cooling system checked for ...

gage isnt registering at all it goes all the way up while turning engine over but goes all the way back down when it starts and drives If you unplug temp sending unit and turn ignition on check guage.

...temp, the gage would be at midpoint and non-functional like others have said. If the cab was "fry eggs on the dashboard" hot from being parked in the sun, the temp gage would work normally, starting ...

temp gage reds hot for a second and returns to after driving 10 minutes temp gage goes all the way to h and then drops back down to normal.only does this in the first 10 minutes of driving. I would ...

...gage goes up and down and you get heat it should be fine make sure you consider the outside temp. as the engine starts it will heat up get really hot the the thermostate opens and the gage will fall ...

temp hand goes up high and down is the car over heating, or just the temperature gage acting up, if the gage is acting up, i would check the coolant temperature switch.

Temp gage lite goes on & off. Needle rises & falls. what is problem? Can I fix? This light has been going on and off for a month. The gauge rises to 250+ degrees after the light goes on...then goes ...