Checking Caster on Power Steering Equipped Vehicle?

[Dibbons]

Does it make a difference if engine is running or not? What is the preferred procedure? Thank you.

 

[69L48Z27]

Any of your alignment specs should not change with or without the engine running.

 

[493 Mike]

I popped something in my back around 1971 manually turning the wheels on a PS front end alignment. Chiropractor popped it back.
Mike

 

[dvw]

I've probably aligned over 3000 cars. Never had one running to check caster.
Doug

 

[YY1]

IIRC a non-PS car likes less caster which makes it easier to turn.