Gear Noise
Gear noise (whine) is audible from 32 to 89 kmlh (20 to 55 mph) under four driving conditions.
1. Driving under acceleration or heavy pull.
2. Driving under load or under constant speed - -
3. When using enough throttle to keep the vehicle from driving the engine while the vehicle slows down gradually (engine still pulls slightly).
4, When coasting with the vehicle in gear and the throttle closed. The gear noise is usually more noticeable between 48 and 64 km/h (30 and 40 mph) and 80 and 89 km/h (50 and 55 mph).
Bearing Noise
Bad bearings generally produce a rough growl or grating sound, rather than the whine typical of gear noise. Bearing noise frequently “wow-wows” at bearing rpm, indicating a bad pinion or rear axle side bearing. This noise can be confused with rear wheel bearing noise.
Rear Wheel Bearing Noise
Rear wheel bearing noise continues to be heard while coasting at low speed with transmission in neutral.
Noise may diminish by gentle braking. Jack up the rear wheels, spin them by hand and listen for noise at
the hubs. Replace any faulty wheel bearings.
Knock At Low Speeds
Low speed knock can be caused by worn universal joints or a side gear hub counter bore in the cage that is worn oversize. Inspect and replace universal joints or cage and side gears as required.
Backlash Clunk
Excessive clunk on acceleration and deceleration can be caused by a worn rear axle pinion shaft, a worn cage, excessive clearance between the axle and the side gear splines, excessive clearance between the side gear hub and the counterbore in the cage, worn pinion and side gear teeth, worn thrust washers, or excessive drive pinion and ring gear backlash. Remove worn parts and replace as required. Select close-fitting parts when possible. Adjust pinion and ring gear backlash.
MY2000 Isuzu VehiCROSS Workshop Manual Page 1
*****Just to let you know I simply printed the part in discussion and then scaned it into my computer using a Text converter, I didn't think it would be that easy but it was.*****
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