This is a speed sensor that monitors the rotational speed of the engine or transmission output shaft for Volvo trucks. It provides critical data to the engine control module (ECM) for accurate fuel management and performance, unlike a faulty sensor that sends incorrect or no signals. Operators may observe erratic speedometer readings, illuminated check engine lights, or a loss of engine power when this speed sensor malfunctions.
Always verify with serial number before ordering.
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Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
An initial symptom of a failing speed sensor is an illuminated check engine light or erratic readings on the speedometer. If ignored, the engine control module may receive incorrect data, leading to poor engine performance, incorrect gear shifts, or even a limp-home mode. This can result in an inability to maintain speed or operate the vehicle safely.
Ensure the sensor mounting surface is clean and free of metal shavings before installation. Avoid overtightening the sensor, as this can damage the threads or the sensor itself.
Inspect the wiring harness and connector for any signs of damage, corrosion, or loose connections when replacing the speed sensor.