1" Square device with electric plug attached left side of radiator. Replacement is about $50.00
bad sensor
perhaps you have a bad coolant level sensor?
On the side of the radiator, by the filler neck? This is the only low coolant sensor I know of. *Ditto here; There is only one for temp and another for coolant level. Each sets off a different warning light on the dash.
Either do to a coolant leak or a failed coolant level sensor.
It is located three to six inches down on the passager side of the raditator... below the raditator cap. hope this helps...
On a 2004 Pontiac Grand Prix the oil level sensor is located on the Oil Pan directly underneath the Air Condition Compressor.
On my 2001 Pontiac Grand Prix, the coolant level sensor in the radiator near the battery would get gummed up. You can lower the coolant level in the radiator, remove the battery, and remove the sensor. Clean it and replace the coolant. I was having to do this yearly. One common problem on these Pontiacs is a leaking plastic lower intake manifold gasket set. A small amount of oil can contaminate the coolant and lead to this build up on the sensor and thus the coolant light illuminated. I changed the l.i.m. gaskets on my car with the improved all aluminum replacement gasket set. In my opinion, this is a very good engine but why GM went with these plastic gaskets is beyond me!!
The coolant level sensor in the coolant reservoir detects the coolant level is low. The coolant system must have a leak in it somewhere. Have a trusted mechanic diagnose it soon before you do damage to the engine.
The "Low Coolant Sensor" on a 1997 Pontiac Montana is located appro 6" below the radiator cap which is on the left as your facing the engine. The sensor measures the fluid level in the radiator itself and is prone to giving false alarms when it gets dirty.
Coolant level low or level sensor malfunction.Coolant level low or level sensor malfunction.
it is located on the rear of the power steering unit next to the two coolant hoses on the plastic water housing
What type of coolant sensor? The below answer is for the coolant LEVEL sensor. The coolant TEMPERATURE sensor on my vehicle is located just next to the thermostat housing. On the front top center area of the engine just behind the radiator. Follow the coolant hoses if you have trouble. On my 1995 Jeep Grand Cherokee the sensor is located on the top of the plastic coolant reservoir tank. Look for a small (2-wire?) electrical connector.