Park on a level surface and set the parking brake
Turn the engine off and let it cool
Check the power steering fluid level
Fill the reservoir to the proper mark with the correct fluid
Raise the front wheels off the ground if possible
Keep the engine off and turn the steering wheel from lock to lock several times
Recheck the fluid level and add fluid if needed
Inspect for foaming, bubbles, or low fluid
Start the engine and let it idle
Turn the steering wheel slowly from lock to lock several times
Do not hold the wheel at full lock for more than a few seconds
Watch the fluid level and top off as needed
Continue turning the wheel until bubbles stop appearing in the reservoir
Shut off the engine and recheck the fluid level
Lower the vehicle if it was raised
Test drive the vehicle and recheck the fluid level again
Inspect for leaks if noise or foaming continues