Relieve coolant pressure.
Unplug it.
Unscrew it.
Screw the new one in before any significant amount of coolant escapes.
Connect the electrical connector to the new sensor.
Consider replacing the thermostat.
where is coolant sensor on a 97 buick lasbre
Replace axle on 2001 buick Lesabre
how do you replace the fuel pump on a 1997 buick lesabre
Manifold ait temperature sensor circuit. Year and model?
where do the thermostat go in my 93 buick lesabre
Don't think yours will have a MAP sensor. It will have a MAF sensor, and it is attached to the air filter housing.
just changed it today, located right side of engine, under to the right of the engine cover , has wires coming off it looking like a bolt,, water will come out when you loosen the bolt.
How do I replace heater core on 98 Buick lesabre
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When I had that problem on my 1997 buick lesabre, I had to replace the catalyst converter and the 02 sensor on it. It resolved the issue with the code.
It was $150 at the dealership where I bought the car. $240 to replace it with tax and labor.
Check www.autozone.com, they have a Repair Info section that covers Buick LeSabre with this info.