2015 NQF/NQG- Interim Model Year Design Change (RPO-AVF) - Digital Speed Sensor

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: 2015 NQF/NQG- Interim Model Year Design Change (RPO-AVF) -- Digital Speed Sensor

Courtesy of GENERAL MOTORS COMPANY

Vehicle Speed Sensor - Non-Digital Assembly
Vehicle Speed Sensor - Non-Digital Assembly Seal (O-ring)
Vehicle Speed Sensor - Digital Assembly Bolt
Vehicle Speed Sensor - Digital Assembly
Vehicle Speed Sensor - Digital Assembly Seal (O-ring)

The RPO-AVF designation was used interim 2015 MY to provide a break-point for a variety of changes that occurred for K-truck applications. The transfer case digital speed sensor change is just one of many within the RPO-AVF designation. Refer to applicable service bulletins for additional information.

Interim 2015 model year for Magna HD NQF and NQG transfer case applications with Duramax engine and Allison transmission (RPO-MW7), a NEW design digital speed sensor (4) is to be implemented.

Non-AVF applications will continue to use the threaded-into-the-rear case design speed sensor (1). Applications with RPO AVF will include a non-threaded push-into-the-bore design speed sensor (4) that is retained by a bolt (3).

To differentiate between digital speed sensor (4) and non-digital speed sensor (1) applications, the RPO AVF is used to identify digital sensor applications.