How to test and replace the engine coolant temperature sensor for Cadillac ElDorado and Fleetwood?

The engine coolant temperature sensor, a thermistor in the coolant stream, varies resistance with temperature. The PCM uses a 5-volt signal to determine the coolant temperature based on this resistance. Testing requires comparing resistance to a chart and checking against an automotive thermometer. If it's off-spec, replace the sensor. Located near the thermostat housing, ensure coolant is drained before removal. Coat the new sensor with thread sealant, tighten to the recommended torque, refill coolant, and reconnect the battery cable.

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11 Coolant Temperature Sensors found

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Cadillac Fleetwood Sensor,Engine Coolant Temperature
Part Number: 15326386
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 25036979, 12146312
$26.35 MSRP: $49.72
You Save: $23.37 (48%)

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Fits the following Vehicles:
1984-1996 Cadillac Fleetwood | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, BROUGHAM 4 DOOR RWD, CONVERSION, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART, TOURING 4 DOOR | 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Sensor Asm,Engine Coolant Temperature Gage
Part Number: 10045847
- Other Name: SENSOR, Computer Control Sensors; Coolant Sensor
$34.43 MSRP: $71.52
You Save: $37.09 (52%)

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Fits the following Vehicles:
1982-1986 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 6.0L
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Cadillac Fleetwood Sensor, Temperature Gauge
Part Number: 25036628
- Other Name: SENSOR, Coolant Temperature (Engine Unit)
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Fits the following Vehicles:
1986 Cadillac Fleetwood | BROUGHAM 4 DOOR RWD
1982-1983 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR | 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Sensor Assembly, Engine Wtr Temperature(1 Terminal)
Part Number: 8993146
- Other Name: SENSOR; Temperature Sending Unit
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Fits the following Vehicles:
1982-1984 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Switch Asm,Engine Metal Temperature Indicator
Part Number: 25036582
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1982 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR | 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Switch Pkg, Coolant Temperature
Part Number: 25036371
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1982-1984 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE | 6 Cyl 4.1L, 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Switch Asm,Engine Metal Temperature Indicator
Part Number: 25036581
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1982-1985 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.3L Diesel, 8 Cyl 6.0L
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Cadillac Fleetwood Switch, Coolant Temperature
Part Number: 25036629
- Other Name: SWITCH, Coolant Temperature (Engine Unit)
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Fits the following Vehicles:
1984-1986 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 5.0L, 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Switch Asm,Engine Metal Temperature Indicator
Part Number: 25036588
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1982-1985 Cadillac Fleetwood | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 5.7L Diesel
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Cadillac Fleetwood Switch Asm
Part Number: 25036586
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1982-1987 Cadillac Fleetwood | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 2 DOOR RWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, BROUGHAM 4 DOOR RWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.3L Diesel, 8 Cyl 4.1L
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Cadillac Fleetwood Switch Assembly, Engine Coolant Temperature Indicator
Part Number: 10137672
- Other Name: SWITCH, Coolant Temperature (Engine Unit); Temperature Sending Unit
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Fits the following Vehicles:
1994-1996 Cadillac Fleetwood | BROUGHAM, BROUGHAM 4 DOOR | 8 Cyl 5.7L
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Cadillac Fleetwood Coolant Temperature Sensor Parts Questions & Answers

Sensor,Engine Coolant Temperature
15326386
Q: How to test and replace the engine coolant temperature sensor for Cadillac ElDorado and Fleetwood?
A: The engine coolant temperature sensor, a thermistor in the coolant stream, varies resistance with temperature. The PCM uses a 5-volt signal to determine the coolant temperature based on this resistance. Testing requires comparing resistance to a chart and checking against an automotive thermometer. If it's off-spec, replace the sensor. Located near the thermostat housing, ensure coolant is drained before removal. Coat the new sensor with thread sealant, tighten to the recommended torque, refill coolant, and reconnect the battery cable.

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