What kind of antifreeze does a 2003 Chrysler Sebring take and what should be done if the gauge keeps going up to hot and then back down and then back up?

Answer 1

It probably needs a thermostat. The Chrysler 2.7 litre engine is bad about getting air into the cooling system and needs to have the air bled out. The temperature sensor is located at the top of the engine, just left of the intake manifold as you stand in front of the car. Also, right next to the air bleed manifold. Be careful, the bleed manifold is mostly plastic and is easy to break. With the car running, attach a preferably clear plastic hose to the top of the air bleed manifold fitting and put the other end into an empty jar or bottle. Now, open the bleed fitting by turning clockwise and watch the antifreeze water mixture air bubbles in the hose until the flow is clear of all air bubbles. It may be necessary to complete this task two or more times. As stated above, the temperature sensor is at the top of the engine and when it is low on water, there is no water reaching the sensor, so when you speed up the engine rpm, the water is pumped up into the top of the engine reaching the sensor and causing the water temperature sensor to show the temperature increase. Low water level shows low temperature readings.