M37 V6-3.7L (VQ37VHR) (2011)
Road Test
Determine if the vehicle has a pull or steering wheel off-center issue that requires repair.
IMPORTANT:
^ If the vehicle has any tire issues such as:
>
Tires that are different sizes (except when specified from the factory)
>
Significant difference in the amount of wear between any of the tires
>
Any other tire irregularity or damage to any tire
Replace the tire(s) or use known good tires from another vehicle for all road tests and diagnostics in this bulletin.
^ Make sure tire pressure is set to the correct specification.
1. Install the following measuring tools on the vehicle:
^ Steering Wheel Offset Gauge
^ Road Crown Gauge
NOTE:
Refer to Special Tools for a description of these tools and an explanation of their use.
2. Obtain a watch with a second hand (preferably a stopwatch) to use during the road test.
3. Take the vehicle for a road test and confirm the customers concern.
^ Select a flat road where the vehicle can be driven in a straight line at a preferred speed of 60 mph.
^ During the road test make sure the vehicle is pointing straight. Don't worry about steering wheel position during the road test.
NOTE:
^ If you adjusted the tire pressure or changed the tires before the road test the issue may have been resolved.
^ If there are cross winds strong enough to affect the vehicle straight line movement then diagnosis cannot be performed.
4. Determine the vehicles issue - refer to the definitions of "Pull" and Steering Wheel "Off-center" below.
5. When the road test is completed remove the Road Crown Gauge; leave the Steering Wheel Off-Set Gauge in place until the Service Procedure is
complete.
6. Refer to the Flow Chart for the next step.
Other Service Information