Skip the auto shop - Our mechanics make house calls

Q: My power steering

asked by on

My power steering fluid is full when the car is off but when I start it it disappears but turn it off it's right back full. What could be the problem

My car has 10000 miles.

A: Hi. This usually means that there is a slow...

Hi. This usually means that there is a slow leak or leaking power steering fluid from more than one part of the power steering fluid system. Because the fluid isn’t coming out fast every time you turn the car on, the pump starts to pump fluid and the level of the fluid drops because now it is being pumped through the power steering system. And because of the leak, the fluid drops to low or empty when the car is on.

I suggest you have your power steering system checked for leaks by a certified technician from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine light on

The rear and front sub frame locating holes and alignment pins are contacting each other underneath on the front or rear sub-frames causing the creaking noise you are hearing. The sub-frames will need to be loosened up on a vehicle...

Q: Acceleration and loss of power issue

The transmission control module (TCM) helps regulate fuel efficiency and power while storing information about the transmission system in its memory. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control...

Q: Cold Starting Problems

Hi There, When you start your vehicle in the morning and turn the key to on, the coolant temperature sensor reads the temperature of the coolant and relays this to the computer indicating that the coolant is cold. The computer...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.