OEM 2001 Buick LeSabre Coolant Temperature Sensor

2001 Buick LeSabre Coolant Temperature Sensor Parts and Q&A

• Q: How to replace the Coolant Temperature Sensor on 2001 Buick LeSabre?

  A: Start by turning the ignition OFF before draining coolant so that it reaches a level lower than the ECT sensor. After disconnecting the electrical connector you must remove the ECT sensor with proper care. Use sealer GM P/N 9985253 or equivalent to cover the ECT sensor threads before installing the new component while confirming the replacement components have the proper application-specific part numbers. First tighten the ECT sensor at 20 N.m (15 lb ft) then connect the ECT harness connector to the sensor. Finally, refill the cooling system. Working with the coolant sensor requires special caution because any damage will impair the system's ability to properly operate fuel control and fuel injection functions. Perform all torque specifications correctly to prevent component damage while staying alert about the necessity of thread locking compounds and lubrication materials and corrosion inhibitors or sealants that need specified use.