Wrangler L4-2.4L VIN 1 (2006)
Alignment: Service and Repair
STANDARD PROCEDURE - CAMBER
Before each alignment reading the vehicle should be jounced (rear first, then front). Grasp each bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the down position.
The wheel camber angle is preset. This angle is not adjustable and cannot be altered.
STANDARD PROCEDURE - CASTER
Before each alignment reading the vehicle should be jounced (rear first, then front). Grasp each bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the down position.
Check the caster of the front axle for correct angle. Be sure the axle is not bent or twisted. Road test the vehicle and observe the steering wheel
return-to-center position. Low caster will cause poor steering wheel returnability.
During the road test, turn the vehicle to both the left and right. If the steering wheel returns to the center position unassisted, the caster angle is correct.
However, if steering wheel does not return toward the center position unassisted, a low caster angle is probable.
Fig. 2 Cam Adjuster
Caster can be adjusted by installing cam bolts and rotating the cams on the lower suspension arm (Fig. 2).
NOTE: Changing caster angle will also change the front propeller shaft angle. The propeller shaft angle has priority over caster.
STANDARD PROCEDURE - TOE POSITION
Before each alignment reading the vehicle should be jounced (rear first, then front). Grasp each bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the down position.
NOTE: The wheel toe position adjustment is the final adjustment. This adjustment must be performed with the engine running, if the vehicle is
equipped with power steering.
1. Start the engine and turn wheels both ways before straightening the steering wheel. Center and secure the steering wheel.
