Saturn radiators don't have caps to check and add fluid to the radiator you open the overflow tank and add it there
It's only radiator cap is on the coolant reservoir.
The radiator does not have a cap, instead, the coolant system reservoir is also pressurized and the pressure cap is on the reservoir.
On a 1993 Lincoln Town Car : The threaded cap on the engine coolant reservoir is the pressure cap / radiator cap
If Im not mistaken, the Pressure cap for a Saturn is the twist on cap on top of the coolant resovoir, if the cap say under pressure then that is it and to add coolant to radiator you fill it thru the res.
The radiator cap is on the coolant reservoir, which is mounted on the passenger side fender for S series Saturns.
The radiator cap on a 2003 Saturn Vue is located on the engine's cooling system, typically at the front of the vehicle near the radiator. It is usually found on the top of the radiator or on the coolant reservoir, which is a white plastic tank connected to the radiator. Ensure the engine is cool before attempting to remove the cap to avoid injury from hot coolant.
On a 2001 Saturn L-Series, the radiator cap is located on the top of the radiator itself. It is typically a circular cap that can be unscrewed for coolant access. Ensure the engine is cool before attempting to remove it to avoid injury from hot coolant or steam.
You fill it though the resivoir cap
Between the front bumber and engine
It's the overflow tank cap.
the ONLY access to the radiator is the overflowreservoir on the passenger side it has a big black cap and its right above the windshield washer fluid tank
There is a threaded plug at the base of the radiator. Screw it out CC and take the cap off of the radiator.