Order of execution
1. If the vehicle constantly pulls to one side while driving on a level road, perform the following checks.
a. Swap the front wheels and carry out a road test.
b. If the vehicle begins to pull in the opposite direction, swap the front and rear wheels and road test again.
c. If the vehicle continues to pull to one side, swap the front wheels and test drive.
d. If the vehicle continues to pull in the opposite direction, replace the front wheels with new ones.