Having problems with your Buick Century ?

Where is the low coolent censor on a 2000 Buick Centry?

Posted / edited by AnonymousUser on : 30-03-2020

Answers :

The low coolant level sensor for 2000 Buick Century is placed on the radiator, below the cap. The coolant level sensor BWD Part No.# S8122

\015\012You do have to drain some coolant to replace the level sensor. It is located in a port at the top third of your radiator, so if you remove it you will lose approximately 1/3 of your coolant very quickly. Shop manual says to drain coolant from the radiator below the level sensor port. Draining one gallon is more than enough. Very easy to install, at most a pair of needle nose pliers for the retainer ring.
\015\012Low coolant level light ON, but coolant level is fine on 2000 Buick Century
\015\012Your low coolant light goes on and you've checked the coolant level. It's right on the money. Suspecting a faulty sensor, you decide to replace it.
\015\012If your vehicle has the 3.1 or 3.4 engine and you've had the intake manifold gaskets replaced, or if you've added sealer to the system, you may have contamination on the sensor. This will also happen when you have put radiator stop leak compounds in the radiator. They gunk up at the sensor, and eventually make the coolant light come on.
\015\012To confirm that this is the problem, remove the sensor and clean it with a wire brush. Then sand with emory cloth. The sensor should be shiny. Reinstall and see if the problem goes away. If it does, you will have to flush the cooling system to get rid of the contamination. Or, clean the sensor when it gets contaminated.
\015\012The low coolant light is more likely a bad sensor level problem.
The low coolant light came on. Fluid levels could reveal no proplems. Then had engine oil change and the light will came on intermittently, but no signs of overheating, fluid leaks, etc. Guage could be nearly pegged, but not completely. If the engine immediatelly return to normal temperature, but the heater blew cool air could this be a thermostat problem.
Repair Help & Product Troubleshooting for Buick Century

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