How to service the coolant temperature sensor/switch for the computer on Mercury Mystique?

To service coolant temperature sensor, release pressure of the cooling system by covering the expansion tank cap with a cloth and rotating it 1/4 turn to the counterclockwise. Dislodge the electrical connector and take off the sensor. To install, follow the procedures in reverses and fill the cooling system accordingly.

OEM Mercury Mystique Coolant Temperature Sensor

Coolant Water Temperature Sensor

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4 Coolant Temperature Sensors found

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Mercury Mystique Coolant Temperature Sensor Part Number: 9U2Z-12A648-A
$32.23 MSRP: $51.18
You Save: $18.95 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sender Assembly; Engine Coolant Temperature Sensor; Temperature Switch; Temperature Sending Unit; Sensor
- Replaces: F4TZ-12A648-A, F2AZ-12A648-A, F2AZ-12A648-AA, F1AZ-12A648-B, E1AZ-12A648-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995 Mercury Mystique | Base, GS, GS Spree, LS, LS Young America | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Mystique Coolant Temperature Sensor Part Number: 3F1Z-12A648-A
$23.00 MSRP: $36.53
You Save: $13.53 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sender Assembly; Engine Coolant Temperature Sensor; Air Temperature Sensor; HVAC System Switch; Temperature Sensor; Temperature Switch; Level Sensor; Temperature Sending Unit; Temperature Gauge Sending Unit; Sensor
- Replaces: F5AZ-12A648-AB, F5AZ-12A648-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2000 Mercury Mystique | GS, LS | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Mystique Sending Unit Part Number: F5RZ-10884-B
$27.26 MSRP: $37.09
You Save: $9.83 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assembly - Temperature; Engine Coolant Temperature Sender; Coolant Temperature Sender; Coolant Temperature Sensor; Temperature Sending Unit
- Manufacturer Note: Single terminal, 2.5 liter
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-2000 Mercury Mystique | Base, GS, GS Spree, LS, LS Young America | 6 Cyl 2.5 L GAS
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Mercury Mystique Temperature Sending Unit Part Number: F5RZ-10884-A
Product Specifications
- Other Name: Sender Assembly - Temperature; Coolant Temperature Sender
- Manufacturer Note: 2 pin terminal, 2.0 liter, Engineering part number 91AB 10884 A*
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-2000 Mercury Mystique | Base, GS, GS Spree, LS | 4 Cyl 2.0 L GAS

Mercury Mystique Coolant Temperature Sensor

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Mercury Mystique Coolant Temperature Sensor Parts and Q&A

Coolant Temperature Sensor
3F1Z-12A648-A
Q: How to service the coolant temperature sensor/switch for the computer on Mercury Mystique?
A: To service coolant temperature sensor, release pressure of the cooling system by covering the expansion tank cap with a cloth and rotating it 1/4 turn to the counterclockwise. Dislodge the electrical connector and take off the sensor. To install, follow the procedures in reverses and fill the cooling system accordingly.