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Your Vehicle Speed Sensor does exactly what its name implies: senses how fast your vehicle is moving. The sensor surveys wheel speed, transaxle speed, or transmission speed, and transmits this data to the engine. The engine's computer makes use of these measurements to adjust mechanical operations while it's running, like fuel-to-air ratio and ignition timing.
If the speed sensor is malfunctioning under the hood of your INFINITI, you might see erratic readings on your speedometer or sudden changes in your transmission. Your check engine light may also illuminate, and your vehicle's cruise control function may quickly turn itself off or stop working altogether. Sometimes, an older Vehicle Speed Sensor will stop working from normal wear over the years. In some cases, acute issues — such as excessive moisture or physical force from flying debris — can render your Vehicle Speed Sensor unusable.
Do you suspect that your Vehicle Speed Sensor is on the fritz? Trust the experts at your nearest INFINITI dealership for diagnostic testing and inspection, and purchase your new Vehicle Speed Sensor from Genuine INFINITI Parts online. All OEM part purchases come with a 12-month,12,0000-mile limited warranty, so why would you look elsewhere for your replacement Vehicle Speed Sensor? The sensor listed here, item number 3193543X61, is designed to fit your INFINITI QX4 2000-2003.
Fits QX4