Question about 2003 Mini Cooper
I have a 53 plate mini cooper. earlier today the power steering failed, luckily i was going slow. its making a loud whining noise when turned off and is still doing it 3 hours later. I've started the engine again and the power steering seems to be working. has anyone got any ideas what it could be? I've been told water pump or water pump fan?
The whining noise you hear coming from the power steering pump is one of three things. The first is more of a loud "hush" than a whine; this is the sound of fluid rushing through the bypass valve when you turn the wheel all the way to one side or the other. Sometimes the bypass valve malfunctions or doesn't open all the way, causing pressure to back up in the pump and cause your engine rpm to drop. The second and third causes result from cavitation -- vacuum pockets created behind the rotor's vane blades as a result of extremely high pump action -- or air in the lines.
Posted on Nov 24, 2013
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Posted on Jan 02, 2017
If the wheel binds up or you encounter harder steering in one direction but not the other, it's your rack. Check for leaks, is it from the connecting hose or the rack itself. Can't find it? It's usually on the bottom rear of your engine,a tie rod on either side will attach to your steering knuckle. If your steering is stiff while wheel is centered or at maximum lock it's your pump.
Never worked on a mini in particular. Doing a quick google search and pumps (minus labour) seem to be 350-450$ depending where you go, unless there's some crazy book time i'm unaware of, 1300$ seems pretty steep.
Is there a noise when you turn? If there is, jack up the front end and remove the cap off your power steering resevoir. Slowly turn the wheel from lock to lock, while the engine is running, to bleed any air out of the system
If you replace one or the other, don't forget to do the above step.
Posted on Apr 07, 2009
Minis have had power steering problems. I wouild contact a dealer and see if theres any updates or service bulletins.
Posted on Oct 11, 2009
I had this exact same problem -- for about a year and a half! Replaced thermostat, replaced sensor twice, replaced overflow tank, replaced radiator cap, placed a grounding kit on the car in case the problem was electrical ... and was ABOUT to replace thermostat again and then the water pump when a new mechanic suggested we bleed air out of the cooling system. The heater core was PACKED with air, as was the upper hose valve area. Previous mechanic had been using a pressurized fill device to bleed the system and this had just been backing air into the heater core. There are two valves under the hood for bleeding air -- one on the heater core and one on the upper hose. It only takes a few minutes to fix this!
Posted on Dec 14, 2009
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