Buy OEM 1991 Buick Part # 55490805. Engine Coolant Temperature Sensor. DIESEL, Inlet, Water

Sensor. Temperature. Coolant. Assembly - Engine Cooling.
Engine Cooling. Temperature Sensor for Engine Coolant. Included with: Control valve, Water inlet pipe.

Engine Coolant Temperature Sensor

Fits Escalade , Escalade ESV, Sierra 1500, Sierra 1500 Limited, Silverado, Suburban , Tahoe , Yukon, Yukon XL

2020-22, control valve. 2023-25, lower. 2023-25, upper. 3.0 LITER DIESEL, control valve. 3.0 LITER DIESEL, water inlet. Escalade ESV; 3.0L Diesel; Engine Block. Escalade; 3.0L Diesel; Engine Block. Silverado, Sierra; 3.0L Diesel; At Inlet Pipe. Suburban; 3.0L Diesel; Engine Block. Suburban; 3.0L Diesel; Inlet Pipe. Tahoe; 3.0L Diesel; Engine Block. Tahoe; 3.0L Diesel; Inlet Pipe. Yukon XL; 3.0L Diesel; Engine Block. Yukon XL; 3.0L Diesel; Water Pump Inlet Pipe. Yukon; 3.0L Diesel; Engine Block. Yukon; 3.0L Diesel; Water Pump Inlet Pipe.
Engine Coolant Temperature Sensor - Repair or Replace
If your engine coolant temperature sensor has failed, you may notice one of several symptoms: your temperature gauge doesn’t move, your engine overheats without warning, your radiator fans don’t switch on, or they don’t switch off. If your 1991 Buick has any of these symptoms, it's a good idea to let a trained Buick technician perform an inspection.