Wheels/Tires - Steering Wheel/Seats Vibration
204-15DATE: 04/01
V8 XJ Series/XK
MODEL:
1997 MY-ON XK Range
1998 MY-ON V8 XJ Series
VIN:
001001-ON
812256-ON
Vibration Felt Through Steering Wheel or Seats - Wheels/Tires - Diagnostic Procedure
Issue:
In the event of customer complaints of a vibration through the steering wheel and/or the seat, a procedure can be followed in order to rectify the concern.
Action:
If a customer complaint is received and the wheels and tires are suspected, follow the workshop procedure below to assist in correcting the concern.
WORKSHOP PROCEDURE
1. Before any rectification work, inspect the vehicle for any damage to the wheels and tires.
2. Check the tire pressures and visually inspect the suspension components for tightness.
3. Drive the vehicle for a distance of 13-16 Km (8-10 miles approximately) at a speed of 80 Km/h (50 mph) to warm the tires and eliminate possibility of incorrect diagnosis due to flat spotting of the tires.
Note:
This procedure needs to be carried out prior to carrying out any analysis work. Driving the vehicle as recommended will work out any temporary flat spotting that may have occurred in the tires, especially if the vehicle has been parked for an expanded period of time.
4. Once the tires are heated, the WDS Vehicle Vibration Analyzer (VVA) procedure must be carried out to determine possible source of vibration.
Note:
In the first instance VVA sensor should be mounted on the seat rail in X-axis orientation. If there is no reading in the X-axis (fore/aft) orientation, repeat test in the Y-axis (left/right) and Z-axis (up/down) or until reading is obtained. (See Illustrations 1 and 2 for model applicability).
5. After the road test, return the vehicle to the workshop and raise it off the floor immediately to prevent any flat spotting of the tires.
6. If the balance of the wheel and tire is suspect, check/adjust the wheel and tire balance. Excellent results have been obtained when using a tire balancer with road force variation measuring capability.
Note:
Use only balance weights of "two-piece" or "stick-on" variety (Jaguar specification only). No claims will be accepted if knock-on weights have been used, and may result in debit action being undertaken.
FURTHER INFORMATION
Note:
If a vibration is still present call the Technical Hotline for further guidance. Prior to the call, the Technical Hotline Precall Work Sheet (S-88, available on the Service and Warranty Forms CD-ROM) must be filled in along with the report form shown (the VVA results must be available and ready to fax.