How to replace Cylinder Head Temperature Sensor on Mercury Mariner?

This procedure does not apply to 2004 and earlier V6 models, as far as I know. In 2.0L four-cylinder vehicles, it is placed close to the alternator whilst in all other four-cylinder it is fitted at the center top of cylinder head. For the later V6 engines, the sensor is fixed on the left side of the rear cylinder head. Possible sabotage steps should be initiated from the side of the car manufacturer: to start with, one should unplug the cable connected to the negative terminal of the battery. If working on a Two point Oh European four-cylinder engine, then pull off the alternator. Third, remove the CHT sensor electrical connector and thereafter unscrew and detach the CHT sensor. 2.0L four-cylinder engine electrical connector needs to be unplug before unscrewing the sensor; for both 2.3L/2.5L four-cylinder engines, the sensor is between number 2 and number 3 spark plugs. The process of installation is as close to the process of removal as it can be, and, finally, the CHT sensor is tightened to the specified torque. Since the battery is disconnected and reconnected, the PCM requires relearn for idle and fuel trim to have more appropriate driveability and performance.

Genuine Mercury Mariner Cylinder Head Temperature Sensor

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3 Cylinder Head Temperature Sensors found

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Mercury Mariner Sensor Assembly
Part Number: 8S4Z-6G004-A
$39.08 MSRP: $50.83
You Save: $11.75 (24%)
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Product Specifications
- Other Name: Sensor Assy; Cylinder Head Temperature Sensor
- Replaces: 7L5Z-6G004-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Mercury Mariner Sensor Assembly
Part Number: 9L8Z-6G004-A
$14.27 MSRP: $20.33
You Save: $6.06 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assy
- Replaced by: 9L8Z-6G004-F
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Mercury Mariner Sensor Assembly
Part Number: 1S7Z-6G004-AA
Product Specifications
- Other Name: Sensor Assy; Cylinder Head Temperature Sensor
- Manufacturer Note: Sensor asy. (Cylinder head temperature) #1S7F 6G004-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)

Mercury Mariner Cylinder Head Temperature Sensor

The Mercury Mariner Cylinder Head Temperature Sensor continuously measures cylinder head heat to prevent power loss and the warping of the cylinder head due to overheating. This information is applied by the Powertrain Control Module (PCM) to adjust the amount of fuel injected into the combustion chamber, advance the timing of the ignition system, and control the speed of the engine cooling fan. The Cylinder Head Temperature Sensor is a thermistor-based, two-wire sender supplied in all Mercury Mariner vehicles. The sending unit converts temperature into a steadily varying voltage signal that the computer weighs against O2, TPS, and MAF signals to enrich cold starts, lean cruise mixtures, or retard spark when detonation threatens. The Cylinder Head Temperature Sensor provides accurate readings that control EGR operation, activate warning lights, and raise idle speed due to component load on the engine. Throughout the years of the Mercury Mariner model, there is no separate style distinction as they maintain fundamentally the same compact solid-state sensor and only minor calibration tweaks that align with updated emission maps. By providing a continuous stream of data, the Cylinder Head Temperature Sensor effectively keeps the combustion chambers within an ideal range. As such, owners of Mercury Mariner enjoy smooth performance, good fuel economy, and long engine life since this Cylinder Head Temperature Sensor is always on guard.

We provide a wide range of Mercury Mariner Cylinder Head Temperature Sensor at the optimal prices. If you need Mercury Mariner Cylinder Head 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 doorstep with a fast delivery service.

Mercury Mariner Cylinder Head Temperature Sensor Parts Questions & Experts Answers

Sensor Assembly
1S7Z-6G004-AA
Q: How to replace Cylinder Head Temperature Sensor on Mercury Mariner?
A:
This procedure does not apply to 2004 and earlier V6 models, as far as I know. In 2.0L four-cylinder vehicles, it is placed close to the alternator whilst in all other four-cylinder it is fitted at the center top of cylinder head. For the later V6 engines, the sensor is fixed on the left side of the rear cylinder head. Possible sabotage steps should be initiated from the side of the car manufacturer: to start with, one should unplug the cable connected to the negative terminal of the battery. If working on a Two point Oh European four-cylinder engine, then pull off the alternator. Third, remove the CHT sensor electrical connector and thereafter unscrew and detach the CHT sensor. 2.0L four-cylinder engine electrical connector needs to be unplug before unscrewing the sensor; for both 2.3L/2.5L four-cylinder engines, the sensor is between number 2 and number 3 spark plugs. The process of installation is as close to the process of removal as it can be, and, finally, the CHT sensor is tightened to the specified torque. Since the battery is disconnected and reconnected, the PCM requires relearn for idle and fuel trim to have more appropriate driveability and performance.