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The mkiv Supra Owners Club

Power Steering Pump Faulty?


charlieboo

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I recently noticed that my steering wheel was vibrating and felt very light. After many hours of attempting to solve the issue, I finally found the cause to be air in the power steering system. After performing a full flush and bleeding the steering felt like new.

However, the problem keeps reoccurring. I have now bled the system 3 times and each time it this solves it.

I have checked that all the hoses are tight and even replaced some of them. I am beginning to wonder if the PAS pump is faulty! Anyone have any ideas on the matter?

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Check the 'O'ring on the fluid intake pipe located on the fluid supply side of the pump. The 'O' ring hardens and if the pipe is moved at all it will start to suck air. To get to the 'O' ring remove the bolt holding down the intake pipe on the pump. Also check the supply side hose (large) from the reservoir to the pump.

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