Noisy in Drive
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Noisy in Drive
| Checks | Action |
|---|---|
| Excessive pinion to ring gear backlash | Adjust the pinion to ring gear backlash. Refer to Backlash Adjustment (7.6, 8.6 Inch Axle) . |
| Worn pinion and ring gear | Replace the pinion and the ring gear. Refer to Drive Pinion and Ring Gear Replacement . |
| Worn pinion bearings | Replace the pinion bearings. Refer to Drive Pinion Bearings Replacement . |
| Loose pinion bearings | Adjust the pinion bearings preload. Refer to Pinion Depth Adjustment . |
| Excessive pinion end play | Adjust the pinion end play. Refer to Pinion Depth Adjustment . |
| Worn differential bearings | Replace the differential bearings. Refer to Differential Side Bearings Replacement . |
| Loose differential bearings | Adjust the differential bearing preload. Refer to Differential Side Bearing Preload Adjustment . |
| Excessive ring gear runout | Replace the ring gear. Refer to Drive Pinion and Ring Gear Replacement . |
| Low oil level | Fill the fluid level to specifications with the proper lubricant. Refer to Lubricant Level Inspection - Rear Drive Axle . |
| Wrong or poor grade oil | Drain and refill the system with the proper lubricant. Refer to Lubricant Replacement - Rear Drive Axle . |
| Bent axle housing | Replace the axle housing. Refer to Rear Axle Housing Replacement . |