ALSO, Keep in mind that your coolant system is designed to be pressurized. When it is under pressure the coolant can work very efficiently to keep your engine at operating temp. If you have a small leak, even a pinhole (or head gasket leak etc.) your engine will easyily overheat because the "boiling temperature" of the coolant is significantly decreased when its not pressurized. For example when the coolant is pressurized it can withstand about 270 degrees, but when not pressurized it can maybe withstand 230 degrees.
Thermostat needs to be replaced, it is not opening (most common). Is electric fan on radiator running normally from time to time?
my jetta keeps overheating so i replaced the thermostat hoping that was the problem but know there telling me it might be the water pump check it out maybe its that
I had similar problem with a mercury tracer I owned I had two problems with mine, One the thermostat was faulty(was old and rusted out) and the temperature sending unit wasn't working right ( Fan did not come on at needed temperature 205 degrees) so I had to replace them both. Hope this helps
I was having the same problem with my car. When you take the thermostat out it will automatically read cool. But I later found out that I had a leak in my radiator and had to replace it. Turned out that my heads are warped and was leaking oil into my water and into the radiator itself. Once i replaced the radiator its been fine.
I had the same problem on my 1989 Isuzu Amigo XS 2.6, I replaced the Ignition Switch and everything was fixed and works like new now.
check the thermostat it is possibal that it is stuck had that prob with a couple cars usaly helps
Carb.? May need to be re-built or replaced
"was having charging system problem so alternator was replaced now car keeps flooding and won`t fire.
It could be a stuck thermostat. If the thermostat is not opening fully it will not allow the coolant to move freely through the engine, making it run hotter than normal.
most 1995 jettas had that problem, the lock will eventually fall through the door and you will have to get it replaced.
I also have a 2000 Chrysler Sebring which I have owned since 2000 and I love it. I was beginning to have the same problem even sitting in traffic for only a couple seconds would cause the gauge to go up. Now recently when I was sitting in traffic the temperature needle was in the red and the temp. light was on. Thank god traffic started moving again and with in seconds of moving, the needle returned to normal and the light turned off. The car seems to be running fine but concerned I brought it to a Chrysler Dealer and they said it wasn't the thermostat but actually the temperature sensor which had to be replaced. I am not sure what the difference is but they replaced it and it runs normally, no overheating.
Replace the Thermostat, and bleed all air from the cooling system.