Q: Power steering loss

asked by on

My car loses its power steering when driving at very low speed. It happens when I'm parking or doing a U turn from a standing still. The steering is fine during normal driving. It doesn't have any fluid leaks, and I have replaced the power steering pump and the O ring seal for the fluid reservoir. I've bled the system a few times. Do you know why this is happening and what I can do to fix it? Thanks.

Hi there, thanks for writing in about your 2001 Mercedes Benz ML430. This problem could be caused by a slipping belt or a faulty belt tensioner. The power steering pulley needs to be observed while the car is parked and in idle to see if its operation is notchy and not smooth. Notchy operation would mean the belt is slipping either from age or lack of sufficient tension produced by the tensioner. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to diagnose and repair the power steering issue so that the correct repairs and adjustments are made.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Power steering loss

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: Power steering fluid leaking in a 2006 Jeep Liberty

Power steering fluid can leak from multiple different places such as; the main power steering pump seal, behind the power steering pump pulley, the pressure line going from the front of the pump to the steering rack, or the return...

Q: Bad steering system in my car, didn’t pass inspection

There is nothing that an owner of a 2009 Chevy Traverse, or most GM vehicles from 2007 thru 2011 that are equipped with this design power steering pumps/Rack and Pinions, can do to prevent these failures. Chevrolet has known about...

Q: Car spits out white smoke when started after sitting for a short time

I have seen this many times on this engine. When this occurs during startup it is because of failed valve stem seals. In some cases the piston rings may be leaking also, but you would get smoke all the time...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...