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GENERAL SS -23 DETAILED TEST K : VIBRATION CONDITIONS DETAILS/RESULTS/ACTIONS K1 ROAD TEST Accelerate the vehicle to the speed at which the customer indicated the vibration occured. ● Is the vibration present ? ⇒ YES Go to K2. ⇒ NO The vehicle is OK. Go to TROUBLESHOOTING. K2 INSPECT THE TIRES 1. Raise and support the vehicle with a frame contact hoist. 2. Inspect the tires for extreme wear or damage, cupping, or flat spots. ● Are the tires OK ? ⇒ YES Go to K3. ⇒ NO Check the suspension components for misalignment, abnormal wear, or damage K3 INSPECT THE WHEEL BEARINGS Spin the tires by hand to check for wheel bearing rougness. ● Is the front wheel bearing OK ? ⇒ YES Go to K4. ⇒ NO Install new front wheel bearings as necessary. K4 TIRE/WHEEL BALANCE Check the tire/wheel balance. ● Are the tires balanced ? ⇒ YES Go to K5. ⇒ NO Balance the tires and wheels as necessary. |