| Vibration through the vehicle body at a specified speed |
- Road wheel imbalance
- Driveshaft imbalance
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- Road test the vehicle. If the vibration is only at a specified speed, balance the road wheels. Test for normal operation. Disconnect the rear driveshaft. Check constant velocity and universal joints for smooth and full movement. Disconnect the front driveshaft. Check constant velocity joints for smooth and full movement. If any joints are faulty, replace the driveshaft. Test for normal operation
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| Vibration through the vehicle body at all speeds |
- Misalignment of the rear driveshaft
- Bent or misaligned stub axle
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- Road test the vehicle. Check the rear driveshaft for correct alignment through the centre support bearing. Rectify as necessary. Test for normal operation. Check for a damaged or bent stub axle. Rectify as necessary
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| Rumbling noise from the rear of the vehicle varying at different vehicle speed and load |
- Rear differential bearings worn
- Rear wheel bearings worn
- Rear driveshaft centre support bearing worn
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- Using a suitable listening device (e.g. stethoscope) listen to the rear differential pinion bearings and output bearings, the rear wheel bearings and the rear driveshaft centre bearing. Rectify as necessary. Test for normal operation
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| Rumbling noise from the front of the vehicle varying at different vehicle speed and load |
- Front differential bearings worn
- Front wheel bearings worn
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- Using a suitable listening device (e.g. stethoscope) listen to the front differential pinion bearings and output bearings and the front wheel bearings. Rectify as necessary. Test for normal operation
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| Whining noise from the rear of the vehicle during acceleration and overrun conditions |
- Rear differential gears worn or damaged
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- Check and top up the rear differential oil level if necessary. Using a suitable listening device (e.g. stethoscope) listen to the rear differential. Replace the rear differential unit if there is excessive gear noise
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| Whining noise from the front of the vehicle during acceleration and overrun conditions |
- Front differential gears worn or damaged
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- Check and top up the front differential oil level if necessary. Using a suitable listening device (e.g. stethoscope) listen to the front differential. Replace the front differential unit if there is excessive gear noise
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| Knocking, clicking or clunking noise from rear of vehicle during acceleration and overrun conditions |
- Rear driveshaft joint fixings insecure
- Rear driveshaft joints worn or damaged
- Rear halfshaft joints or splined shaft worn or damaged
- Rear differential internal components worn or damaged
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- Disconnect the rear driveshaft. Check joint mounting bolt holes for elongation. Check the joints. Disconnect the rear halfshafts. Check the shaft splines for wear or damage. Check the constant velocity joints. Rectify as necessary. With the rear driveshaft and halfshafts disconnected, check the rear differential for tight spots or excessive play. Rectify as necessary
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| Knocking, clicking or clunking noise from front of vehicle during acceleration and overrun conditions |
- Front driveshaft constant velocity joints worn or damaged
- Front halfshaft joints or splined shaft worn or damaged
- Front differential internal components worn or damaged
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- Disconnect the front driveshaft. Check joint mounting bolt holes for elongation. Check the joints. Disconnect the front halfshafts. Check the shaft splines for wear or damage. Check the constant velocity joints. Rectify as necessary. With the front driveshaft and halfshafts disconnected check the front differential for tight spots or excessive play. Rectify as necessary
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