If it's low on fluid, it's quite common to act up.
You know how to check the fluid? Start it up, park on level ground. Clean dipstick and check it with the engine running? That's all there is to it.
I ensure mine are full to the top line. IIRC it was Intense Racing that used to suggest adding one pint over the full mark to ensure there was no fluid starvation on hard left turns. Causes all the fluid to slosh away from the pump. Apparently the pint was the answer.