Then said they will adjust the control arms if rotating the tires around didn't help.
Would new tires or control arm settings cause a slight pull to the right???
Both can... They should have adjusted the control arms when they did the alignment, that's part of the process.
You typically want a little higher caster on the passenger side to compensate for standard road crown. Like 4.4 on the drivers side and 4.7 on passenger side, etc.
For tires, there is a radial tire pull diagnosis here:
Step 1Action to be Taken
Rotate the two
front tires from side-to-side.
Directional tires can be moved from side-to-side for testing purposes. The short time that they are on the vehicle backwards will not harm the tire.Results
1.If the vehicle pulls in the opposite direction, the defective tire is one of the
front tires.
(GO TO STEP 2)2.If the vehicle pulls in the same direction the problem is either with one of the
rear tires or is
not a tire-related problem.
(GO TO STEP 3)
Step 2Action to be Taken
Rotate the
front tire on the side of the car that is in the direction of the pull, to the
rear of the car.
Results
1.If the pull no longer exists or diminishes greatly, the tire that was moved to the
rear of the car is the defective tire.2.If the pulling does not change, the defective tire is isolated to the
front tire that was
not moved in Step 2.
Step 3Action to be Taken
Rotate the two
rear tires from side to side.
Results
1.If the vehicle pulls in the opposite direction, the defective tire is one of the
rear tires.
(GO TO STEP 4)2.If the pulling tire does not change, the problem is
not tire related. The car should be checked for possible misalignment or suspension wear.
Step 4Action to be Taken
Rotate the
rear tire on the side of the car that is in the direction of the pull to the
front of the car.
Results
1.If the vehicle pull becomes more severe, the defective tire is isolated to the tire that was rotated to the
front of the car.2.If the pulling does not change, the defective tire is isolated to the
rear tire that was not rotated.
If it's a tire, you can usually get it replaced pretty easily.
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