How to check and replace the Coolant Temperature Sensor on Mercury Cougar?

This process pertains to standard analog instruments. Begin by examining the fuses if the coolant temperature gauge or light doesn't function. For an excessively high temperature indication, consider troubleshooting procedures. If the temperature gauge or light signals "Hot" soon after the engine starts, disconnect the wire at the coolant temperature sensor. Replace the sending unit if the gauge reading falls or the light turns off. High readings might indicate a shorted wire or a malfunctioning gauge. If the coolant temperature gauge doesn't register post engine warming, turn off the engine and disconnect the wire at the sending unit. Use a jumper wire to connect it to a clean engine ground. If the gauge now displays "Hot", replace the sending unit. If the gauge remains unresponsive, an open circuit or a defective gauge might be the cause. For replacement, initiate by removing the radiator cap to relieve pressure. Disconnect the electrical connector from the sending unit, and wrap Teflon tape around the threads of the new sending unit. Swiftly replace the old sending unit with the new one to avoid coolant loss. Securely tighten the sending unit and reconnect the wiring harness. Refill the cooling system and monitor for leaks and accurate gauge operation.

Genuine Mercury Cougar Coolant Temperature Sensor

Coolant Water Temperature Sensor

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12 Coolant Temperature Sensors found

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Mercury Cougar Sender Assembly - Temperature
Part Number: F7DZ-10884-AA
$11.61 MSRP: $24.73
You Save: $13.12 (54%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
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Mercury Cougar Sender Assembly
Part Number: 1L2Z-12A648-AA
$34.56 MSRP: $47.23
You Save: $12.67 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Mercury Cougar | 6 Cyl 2.5L | 4AT CD4E, 5MT
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Mercury Cougar Sender Assembly - Temperature
Part Number: F5RZ-10884-B
$27.15 MSRP: $37.09
You Save: $9.94 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assy - Temperature; Sending Unit, 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:
- 1999-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
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Mercury Cougar Sender Assembly - Temperature
Part Number: F1SZ-10884-A
$34.54 MSRP: $55.09
You Save: $20.55 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assy - Temperature
- Replaces: DOWY-10884-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1997 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 3AT C5, 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
- 1981-1982 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 3AT C5, 4AT AOD, 4MT
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Mercury Cougar Sender Assembly
Part Number: F2AZ-12A648-A
$32.02 MSRP: $50.18
You Save: $18.16 (37%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sender Assy
- Replaced by: 9U2Z-12A648-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1994-1995 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L | 4AT, 4AT AODE
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Mercury Cougar Sender Assembly
Part Number: E1AZ-12A648-A
$32.02 MSRP: $50.18
You Save: $18.16 (37%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Coolant Temp Sensor
- Replaced by: 9U2Z-12A648-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1993 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 5.0L | 4AT AOD, 5MT
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Mercury Cougar Sender Assembly - Temperature
Part Number: DOZZ-10884-A
$85.80 MSRP: $141.82
You Save: $56.02 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sender Assy - Temperature
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1986 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 5.0L | 3AT C5, 4AT AOD, 5MT
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Mercury Cougar Sender Assembly - Temperature
Part Number: XS2Z-10884-AA
$28.27 MSRP: $45.09
You Save: $16.82 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sender Assy - Temperature
- Replaced by: 3F1Z-10884-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
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Mercury Cougar Sensor - Engine Temperature, ECT
Part Number: F5AZ-12A648-A
$22.46 MSRP: $35.82
You Save: $13.36 (38%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Replaced by: 3F1Z-12A648-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Mercury Cougar | 6 Cyl 2.5L | 4AT CD4E, 5MT
- 1996-1997 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L | 4AT 4R70W
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Mercury Cougar Sender Assembly
Part Number: F8CZ-12A648-AA
$20.63 MSRP: $32.91
You Save: $12.28 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender Assy
- Replaced by: F8CZ-12A648-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Mercury Cougar | 4 Cyl 2.0L | 4AT CD4E, 5MT
View related parts
Mercury Cougar Sender Assembly - Temperature
Part Number: F7CZ-10884-BA
$27.93 MSRP: $44.55
You Save: $16.62 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender Assy - Temperature; Fan Switch, Sending Unit, Temperature Sending Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
View related parts
Mercury Cougar Sender Assembly - Temperature
Part Number: F68Z-10884-AA
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-1997 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L | 4AT 4R70W

Mercury Cougar Coolant Temperature Sensor

The Coolant Temperature Sensor in Mercury Cougar vehicles is responsible for monitoring the temperature of the coolant thus is able to control the engine operation. Through the right identification of the coolant temperature, the sensor plays a critical role of regulating the engine efficiency and performance. With the passage of time, many types of Coolant Temperature Sensors have been employed in Cougar models; though theseShow Details instruments all operate to serve one basic function, they may be distinguished from one another in terms of design or technology. Call these variations differences in sensitivity or response time with respect to how they communicate temperature to the engine control unit. In summary, the Coolant Temperature Sensor is a vital part of a car and helps the car to run as expected and lasts long.

We provide a wide range of Mercury Cougar Coolant Temperature Sensor at the best prices possible. If you need Mercury Cougar Coolant Temperature Sensor, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Cougar Coolant Temperature Sensor Parts Questions & Experts Answers

Sender Assembly
E1AZ-12A648-A
Q: How to check and replace the Coolant Temperature Sensor on Mercury Cougar?
A: This process pertains to standard analog instruments. Begin by examining the fuses if the coolant temperature gauge or light doesn't function. For an excessively high temperature indication, consider troubleshooting procedures. If the temperature gauge or light signals "Hot" soon after the engine starts, disconnect the wire at the coolant temperature sensor. Replace the sending unit if the gauge reading falls or the light turns off. High readings might indicate a shorted wire or a malfunctioning gauge. If the coolant temperature gauge doesn't register post engine warming, turn off the engine and disconnect the wire at the sending unit. Use a jumper wire to connect it to a clean engine ground. If the gauge now displays "Hot", replace the sending unit. If the gauge remains unresponsive, an open circuit or a defective gauge might be the cause. For replacement, initiate by removing the radiator cap to relieve pressure. Disconnect the electrical connector from the sending unit, and wrap Teflon tape around the threads of the new sending unit. Swiftly replace the old sending unit with the new one to avoid coolant loss. Securely tighten the sending unit and reconnect the wiring harness. Refill the cooling system and monitor for leaks and accurate gauge operation.

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