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Pressurized Power Steering Reservoir V70-XC70

posted by  Matt'sDad on  Mon Sep 19 21:22 CST 2011
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last visit: Tue Sep 20 14:17 CST 2011
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Hi everyone,
My 1998 Volvo V70 is leaking badly from the central gear on the power steering rack. While I anticipate having to change the steering rack ASAP I want to rule out any secondary problems.

Without having previously paid any attention I have noticed now that the power steering reservoir is pressurized after running the car any length of time. Moreover, opening the reservoir cap and releasing the pressure seems to significantly reduce the leak at the steering rack while the car is parked.

Bottom line – does anyone know if the power steering reservoir is supposed to be pressurized or if this condition is abnormal and may indicate a secondary problem that contributed to the leaking power steering rack?

Thanks in advance,
Kevin







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    Pressurized Power Steering Reservoir V70-XC70

    posted by  Herb Goltz on  Tue Sep 20 10:32 CST 2011
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    last visit: Fri Oct 24 13:23 CST 2014
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    Abnormal-- I had it happen with a '92 940T a while back-- the pump bearings were completely shot and if I ran the engine it would push power steering out the vent hole in the power steering reservoir.

    I'd be inclined to take the serpentine belt off and assess the condition of the pump by turning it by hand and inspecting it for axial play.

    Good luck!






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