Noisy on Turns
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Noisy on Turns
| Cause | Correction |
|---|---|
| Inspect for the proper gear oil levels prior to performing system diagnosis. Refer to Lubricant Change . Operate the vehicle turning in tight circles in both left and right directions. A moan, groan, chatter or a pulsing type concern may indicate a pump, valve or clutch pack malfunction within the differential assembly. |
|
| Worn or loose rear differential mounts | Repair or replace as required. |
| Loose torque tube bracket or a damaged bracket bushing | Tighten the bracket bolts or replace the bracket as required. |
| Worn axle shaft constant velocity joints | Replace the constant velocity joints as required. |
| Worn wheel bearings | Replace the wheel bearings as required. |
| Incorrect type fluid Installation of the incorrect type gear oil may create a "moan" type noise within 7 770-25 900 km (3-10,000 miles). Fluid that is "black" in color is to be considered normal and is darkened by the carbon material in the clutch plates. |
Replace the rear differential assembly as required. Fluid replacement will not correct a "moan" condition caused by the use of incorrect oil. Refer to Differential Replacement . |
| Worn clutch pack friction discs | Replace the differential assembly. |