4. GENERAL GUIDELINES FOR TESTING DRIVE SHAFT NOISE: Ensure that the DRIVER is alone in the vehicle while conducting the test. • All the windows of the vehicle should be fully rolled- up to reduce the disturbances caused by external • noises. Drive on a smooth stretch of road and pay particular attention to various noises emanating from the front • portion of the vehicle. Observe the changes in noise levels through speeds between 10 to 60 kmph (6 and 36 mph). It should be noted here that the driver may encounter difficulty in distinguishing between similar sounding • noises resulting from either the drive shaft or the underbody (for example noise from strut and caliper). Therefore, it is advised that the car be driven on uneven and bumpy surfaces as well, to observe the noises • which may then be attributable to the underbody. Focus on that side of the car being considered for the drive shaft complaint. • Tests for CV (wheel side) and Inboard (engine side) joints are different and need to be conducted separately. • DRIVESHAFT DCT 4
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