What is the role of the cylinder head temperature sensor in the Fail Safe Cooling system on Ford Excursion?

The cylinder head temperature sensor, a key part of the Fail Safe Cooling system, adjusts its voltage output based on temperature changes. As the sensor temperature drops, resistance values and voltage increase. If the cylinder head temperature surpasses 265 degrees F, the PCM deactivates four (V8) or five (V10) fuel injectors, using the unfueled cylinders as cooling air pumps. At 330 degrees F, all fuel injectors are disabled. To replace the sensor, the intake manifold must be removed, the electrical connector unplugged, and the sensor unscrewed and replaced.

Genuine Ford Excursion Cylinder Head Temperature Sensor

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1 Cylinder Head Temperature Sensor found

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Ford Excursion Sensor Assembly
Part Number: F65Z-6G004-AB
$22.11 MSRP: $31.50
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Product Specifications
- Other Name: Sensor Assy
- Replaced by: 8L3Z-6G004-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2005 Ford Excursion | 10 Cyl 6.8L, 8 Cyl 5.4L | 4AT 4R100, 5AT

Ford Excursion Cylinder Head Temperature Sensor

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Ford Excursion Cylinder Head Temperature Sensor Parts Questions & Experts Answers

Sensor Assembly
F65Z-6G004-AB
Q: What is the role of the cylinder head temperature sensor in the Fail Safe Cooling system on Ford Excursion?
A: The cylinder head temperature sensor, a key part of the Fail Safe Cooling system, adjusts its voltage output based on temperature changes. As the sensor temperature drops, resistance values and voltage increase. If the cylinder head temperature surpasses 265 degrees F, the PCM deactivates four (V8) or five (V10) fuel injectors, using the unfueled cylinders as cooling air pumps. At 330 degrees F, all fuel injectors are disabled. To replace the sensor, the intake manifold must be removed, the electrical connector unplugged, and the sensor unscrewed and replaced.