How should you adjust the speed sensor air gap on a transmission output shaft?

Adjusting the speed sensor air gap on a transmission output shaft is crucial for ensuring accurate readings and proper transmission function. The most effective way to achieve this is by allowing the sensor to lightly touch a tooth on the tone ring. This method ensures that the sensor is in the optimal position to detect the passing teeth consistently, which provides reliable signals to the vehicle's control systems.

When the sensor is positioned correctly by lightly bottoming it on a tone ring tooth, it minimizes the risk of interference from the tone ring or any dirt and debris that may accumulate in the air gap. The sensor then operates effectively within its designed specifications, enhancing overall performance.

Other methods, such as drilling or using power tools for adjustment, may introduce unnecessary complications or cause damage to surrounding components. Leaving the sensor unadjusted is also counterproductive, as it can lead to inaccurate readings and performance issues. Proper adjustment is key to ensuring the reliable function of the transmission and the overall vehicle performance.