How do you test a coolant sensor on a 1995 saturn sl2

SOURCE: 97 saturn sl2 temp light flashing and low coolant

If the temp gauge is reading normal, the lights are flashing, and the coolant level is full, the level sensor in the coolant bottle is the problem. I'm a service consultant for a Saturn dealer and I've run across this many times.

SOURCE: 98 saturn SL2, P0172 and misfire dtc's, jerks when

Possible blown head gasket. Big problem . Have that checked immediately by a engine coolant pressure leak-down test. You can lose your engine and pronto! Small amount of coolant possible passing into crankcase or/and the cylinders.

SOURCE: My 1993 Saturn SL2 just failed the Smog Check

change your O2 sensor.

SOURCE: how to replace coolant heat sensor on 1998 saturn

the coolant temp sensor is located on the right side of the cyl head its small under by the upper rad hose 13mm socket removes it after u take the small connector of,make sure the car is cold coolant will come out when u remove it,,,,check the connector too for corrosion,by only saturn sensor the cheap autozone and aftermarket ones dont read right and give you the same problem as the old bad one

SOURCE: 1991 saturn sl2 water pump replacement

well first you drain the coolant out at the low point on the radiator, that way it is saved if new. then you take off the right front wheel and remove the plastic access cover from behind the wheel to get to that side of the engine. then you take off the serpentine belt and etc. yes you can do this with the engine still in the car. you may want to consider replacing the serpentine belt and tensioner while you are in that area.