General Information: Specifications Suzuki XL7 I

Prevailing Torque Fasteners

Prevailing torque fasteners create a thread interface between the fastener and the fastener counterpart in order to prevent the fastener from loosening.

All Metal Prevailing Torque Fasteners

These fasteners accomplish the thread interface by a designed distortion or deformation in the fastener.

Nylon Interface Prevailing Torque Fasteners

These fasteners accomplish the thread interface by the presence of a nylon material on the fastener threads.

Driveline Torque-Load Conditions

An drive axle that has internal conditions such as excessive runout of components, misalignment of components, imbalance, etc., can produce vibration concerns which may be transmitted into the propeller shaft, or shafts. This sort of a vibration occurrence can increase or decrease in severity based primarily upon torque-load, but can also be affected by cold or hot conditions.

The propeller shaft and other related components may or may not pass inspections for wear or damage, runout, alignment, etc., depending upon whether there is only one vibration source or more than one.

Vibration in Service-Stall Test (Non-Torque Sensitive)

Special Tool

J 38792-A Electronic Vibration Analyzer (EVA) 2

1. Turn the ignition ON but do not start the engine.
2. Place the transmission in NEUTRAL.
3. Raise and support the vehicle. Support the drive axle or axles at curb height. Refer to «LIFTING AND JACKING THE VEHICLE»(ref-268408-S26898100292007102300000).
4. Remove the tire and wheel assemblies from the vehicle. Refer to «REMOVAL PROCEDURE»(ref-268443-S10575187772007102300000).
5. Remove the brake rotors or drums, if equipped, from the drive axle or axles.
6. Inspect the propeller shaft or shafts. All propeller shafts should be free of undercoating before continuing. CAUTION: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.
7. Have an assistant start the engine.
8. Place the transmission in the highest forward gear.
9. Accelerate and decelerate the vehicle through the speed range at which the vibration was first noted during the Vibration Analysis-Road Testing procedure.
10. Record whether the vibration was present, and at what speed.
11. If the vibration is present, determine which end of the propeller shaft is vibrating the most. Hold the vibration sensor of the J 38792-A Electronic Vibration Analyzer (EVA) 2, up to the pinion nose and the transmission or transfer case tailshaft housing.
12. If the vehicle is equipped with a multiple-piece propeller shaft, hold the vibration sensor of the J 38792-A up to the propeller shaft support bearing assembly, or assemblies to inspect for vibration.
13. If the transmission or transfer case output shaft housing is vibrating, hold the vibration sensor of the J 38792-A up to the transmission crossmember under the transmission mount. If there is no vibration on the crossmember, then the transmission mount is working properly.
14. Record which end of the propeller shaft is vibrating the most, and how severe the vibration is. The inspection will be a reference by which to judge future progress.

Vibration in Service-Stall Test (Torque Sensitive)

Special Tool

J 38792-A Electronic Vibration Analyzer (EVA) 2

1. Turn the ignition ON but do not start the engine.
2. Place the transmission in NEUTRAL.
3. Raise and support the vehicle. Support the drive axle or axles at curb height. Refer to «LIFTING AND JACKING THE VEHICLE»(ref-268408-S26898100292007102300000).
4. Remove the tire and wheel assemblies from the vehicle. Refer to «REMOVAL PROCEDURE»(ref-268443-S10575187772007102300000).
5. Remove the brake rotors or drums, if equipped, from the drive axle or axles.
6. Hold the vibration sensor of the J 38792-A Electronic Vibration Analyzer (EVA) 2, against the pinion nose. CAUTION: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.
7. Have an assistant start the vehicle.
8. Place the transmission in the highest forward gear.
9. Accelerate and decelerate the vehicle through the speed range at which the vibration was first noted during the Vibration Analysis - Road Testing procedure.
10. If a vibration is present, note the J 38792-A reading during acceleration or deceleration.
11. Note as to whether or not the pinion nose vibrates under load during acceleration or deceleration.
12. If the vibration is not reproduced, reinstall the brake rotors and/or drums and the wheel/tire assemblies to put an additional load on the system. Perform steps 7 - 11 and check the components again.
13. If the vibration is still not reproduced with rotors and/or drums reinstalled, lightly apply the brakes to further load the system while maintaining the vibration concern speed.
14. If the pinion nose vibrates under acceleration or deceleration, and other driveline components have been eliminated as a cause, the vibration may be an internal axle problem.

See also:
• DTC B2705
• DTC P0008 OR P0009
• SYMPTOMS - ENGINE MECHANICAL