Propeller Shaft Diagnosis

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Review the propeller shaft system function. Propeller Shaft Description and Operation

Inspect for loose or missing propeller shaft-to-flange bolts. Tighten or replace as necessary.

Front Axle Propeller Shaft Replacement (L3B) , or Front Axle Propeller Shaft Replacement (LSY)
Propeller Shaft Replacement (LSY, RWL) , or Propeller Shaft Replacement (L3B, RWL) , or Propeller Shaft Replacement (L3B, F46) , or Propeller Shaft Replacement (LSY, F46) , or Propeller Shaft Replacement (LF4, MHU) , or Propeller Shaft Replacement (LF4, MG9)

Inspect for loose center bracket bolts and damaged rubber bushings. Tighten or replace as necessary. Propeller Shaft Replacement (LSY, RWL) , or Propeller Shaft Replacement (L3B, RWL) , or Propeller Shaft Replacement (L3B, F46) , or Propeller Shaft Replacement (LSY, F46) , or Propeller Shaft Replacement (LF4, MHU) , or Propeller Shaft Replacement (LF4, MG9)

The propeller shaft and the joints are not serviceable.

The joint seals should be inspected for the following:

Tears
Cracks
Contamination of the lubricating grease
Carefully pinch the seal and feel for the presence of grit
Loose or missing seal clamps
Leakage of lubricating grease from the seals

The joints should be inspected for the following conditions:

Binding or impeded motion during axial movement of the joints
Loose or missing crimped-on end caps
Leakage of lubricating grease from the end caps

The propeller shaft must be replaced if any of the above conditions exist. This will ensure that the propeller shaft continues to operate as intended, and does not damage the other driveline components.