The sensor could be defective from factory have it checked at auto zone? Or you might have a bad relay. Had the same problem today. Replaced the relay which is located on the driver side engine compartment fender well. Cost: $21.78 Fan cycles on as required depending on engine temp.
you might want to check for a blown head gasket or a cracked head or block. espically if it loosing water out of the radiator with out leaking on the ground.
Was unit evacuated before recharge after compressor replacement?
If the Cavalier bleeder can not be removed with pliers, try a screw removal tool. The tool has angled threads. Slide it into the broken bleeder then turn it, the threads will grab the bleeder and should back it out for replacement.
When it's running hot you should hear the cooling fan running, if not that is your problem. If the cooling fan does not operate check the fuses, cooling fan relay, cooling fan switch and cooling fan motor. One of them is at fault.
In a 1992 Chevrolet Cavalier, the fuse for the cooling fan is typically located in the fuse box under the dashboard on the driver's side. You can find the fuse box by removing the cover and looking for the specific fuse labeled for the cooling fan or radiator fan in the diagram on the cover. If the fuse is blown, it will need to be replaced with one of the same amperage. Always consult the owner’s manual for exact details and locations.
The 2000 Chevy Cavalier cooling fan shroud is held in place with 10 retaining bolts. Remove the retaining bolts and the cooling fan shroud will come off.
The cooling system capacity of a Chevrolet Cavalier typically varies by model year and engine type. Generally, the cooling system can hold around 7 to 9 quarts (approximately 6.6 to 8.5 liters) of coolant. It's important to consult the owner's manual or a service guide for the specific capacity of your particular Cavalier model.
You can find a 1993 Chevrolet Cavalier schematic diagram, for the wiring and cooling system, at most Chevrolet dealerships. You can also find the diagram at most auto-parts stores.
Did u check your enigine cooling fan?
Regular Water is used to cool the reactors, and for steam production. The cooling water evaporates into the air...so it has to be replaced. Therefore the Plant has to have a source of fresh water for replacement.
Open the drain plug at the bottom of the radiator on the Cavalier if the plug is there. If the radiator is the model that does not have the plug, then the bottom hose needs to be removed to drain the coolant.
There is no reason to ever bleed a cooling system.