I have had mine lock with out turning all the way and other times it takes the full turn. I don't know how it works but I do know it varied.
205,125 miles when she was given away
35 mpg last tank
̶w̶a̶i̶t̶i̶n̶g̶ ̶f̶o̶r̶ ̶h̶e̶r̶ ̶t̶o̶ ̶d̶i̶e̶ ̶s̶o̶ ̶I̶ ̶c̶a̶n̶ ̶b̶u̶y̶ ̶a̶ ̶t̶r̶u̶c̶k̶,̶ ̶b̶u̶t̶ ̶s̶h̶e̶ ̶w̶o̶n̶'̶t̶ ̶d̶i̶e̶ She didn't die but I bought the truck anyway!!