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In the 2007 Nissan Frontier, the 5-speed automatic transmission has a turbine revolution sensor positioned on the input side behind the bellhousing towards the driver's side. This sensor, along with the vehicle's speed sensor located on the output side of the automatic transmission, is crucial for optimizing shift timing in the Frontier. The turbine sensor detects revolutions per minute while the speed sensor tracks output shaft rpms. Together, they ensure that the Frontier's gears move correctly and shift at the right time. If either sensor malfunctions, you may notice a lit-up "check engine" light, rough shifting, inability to use cruise control, and issues with the speedometer. The average cost to replace the turbine revolution sensor is between $400 and $600 for parts and labor.
The 2007 Nissan Frontier's turbine revolution sensor can be found on the input section of its automatic transmission.