Grand Caravan V6-4.0L (2008)
Alignment: Service and Repair
Wheel Alignment
WHEEL ALIGNMENT
PRE-WHEEL ALIGNMENT INSPECTION
Before any attempt is made to change or correct the wheel alignment, the following inspection and necessary corrections must be made to ensure proper
alignment.
1. Verify that the fuel tank is full of fuel. If the tank is not full, the reduction in weight will affect the curb height of the vehicle and the alignment
angles.
2. The passenger and luggage compartments of the vehicle should be free of any load that is not factory equipment.
3. Check the tires on the vehicle. All tires must be the same size and in good condition with approximately the same amount of tread wear. Inflate all
the tires to the recommended air pressure.
4. Check the front wheel and tire assemblies for excessive radial runout.
5. Inspect lower ball joints and all steering linkage for looseness, binding, wear or damage. Repair as necessary.
6. Check suspension fasteners for proper torque and retighten as necessary.
7. Inspect all suspension component rubber bushings for signs of wear or deterioration. Replace any faulty bushings or components before aligning
the vehicle.
8. Check the vehicle's curb height to verify it is within specifications.See:
WHEEL ALIGNMENT SETUP
1. Position the vehicle on an alignment rack.
2. Install all required alignment equipment on the vehicle. On this vehicle, a four-wheel alignment is recommended.
NOTE: Prior to reading the vehicle's alignment readouts, the front and rear of vehicle should be jounced. Induce jounce (rear first, then
front) by grasping the center of the bumper and jouncing each end of vehicle an equal number of times. The bumper should always be
released when vehicle is at the bottom of the jounce cycle.
3. Read the vehicle's current front and rear alignment settings. Compare the vehicle's current alignment settings to the vehicle specifications for
camber, caster and toe-in. See: Specifications
4. If front camber and caster are not within specifications, proceed to FRONT CAMBER AND CASTER below. If caster and camber are within
specifications, proceed to TOE which can be found following FRONT CAMBER AND CASTER. Rear camber, caster and toe are not adjustable.
If found not to be within specifications, reinspect for damaged suspension or body components and replace as necessary.
FRONT CAMBER AND CASTER
Front camber and caster settings on this vehicle are determined at the time the vehicle is designed, by the location of the vehicle's suspension
components. This is referred to as Net Build. The result is no required adjustment of camber and caster after the vehicle is built or when servicing the
suspension components. Thus, when performing a wheel alignment, caster and camber are not normally considered adjustable angles but some
adjustment can be made. Camber and caster should be checked to ensure they meet vehicle specifications. See: Specifications
If individual front camber or caster is found not to meet alignment specifications, each can be adjusted by shifting the front crossmember or by using an
available service adjustment bolt package. If an adjustment bolt package installation is necessary, inspect the suspension components for any signs of
damage or bending first.
If individual front camber or caster is found to meet alignment specifications, but the vehicle pulls or leads in one direction, crosscamber and crosscaster
can be adjusted by shifting the front crossmember. Following adjustment, make sure individual front camber and caster is within specifications. If not
within specifications, adjust as necessary by using an available service adjustment bolt package or by shifting the front crossmember.
CAUTION: Do not attempt to adjust the vehicle's wheel alignment by heating or bending any of the suspension components.
ADJUSTMENT BY SHIFTING CROSSMEMBER
CAUTION: Always use care when shifting crossmember to avoid damaging other components on the vehicle.
1. Loosen the bolts fastening the front crossmember to the frame just enough to allow movement of the crossmember.See: Body and
Frame/Frame/Cross-Member/Front Cross-Member/Service and Repair
2. Loosen the bolts fastening the fore/aft crossmember to the frame just enough to allow movement of the crossmember.See: Body and
Frame/Frame/Cross-Member/Front Cross-Member/Service and Repair
CAUTION: When shifting the front crossmember, keep in mind that the front and rear engine mounts are attached to the front
crossmember and fore/aft crossmember and should be inspected following the crossmember shift to make sure they are properly aligned.