Skylark V6-173 2.8L VIN X 2-bbl (1984)
Coolant Temperature Sensor/Switch (For Computer): Technical Service Bulletins
Coolant Sensor - Improved Kit
COOLANT SENSOR KIT
1980-1984 BUICKS EQUIPPED WITH COMPUTER COMMAND CONTROL
Many coolant sensors have been replaced on 1980 to 1984 vehicles as a result of a "Check Engine" light and Code 15. In many cases, the sensor was not
defective and the real cause was a poor connection between the sensor and the wire harness connector.
An improved coolant sensor and connector kit, Part No. 10045847, containing all necessary parts, has been released for all 1980-84 Buicks using
Computer Command Control. This sensor is used to provide coolant temperature information to the Electronic Control Module (ECM). Separate sensors
are used for gauge or warning light operation, or to activate the electric cooling fan, and these are not affected.