HOW DO i RECHARGE MY SATURN SL2 2000 S AIR CONDITIONING

Coolant Temp Sensor(s) are located on the cylinder head. Remove the plastic tube from the throttle body and air filter. The sensors will be located between the battery and engine. Upper sensor will have a green wire and lower will have a yellow wire. Pinch the connector tabs to remove connector from sensor. Remove the coolant cap to release the pressure. Use a 13mm deep sockets to remove. Plasic style sensors commonly cracked on the tip and caused various conditions. ~Note corrosion is common between the sensor and connector. Replace the connector if corrosion is noticed.