Question about 2005 Volvo XC90
it could be a few things
Firstly if there is foam then there must be air, I would imagine that it could be a tiny seal from either the steering rack or from one of the fluid pipe, on the other hand if it has ran low then you topped it up that could cause air also, although normally that come out naturally, with the car running and the cap off.
It does sound like there may be a fualty pump to blame but I would have all the seals checked before replacing the pump needlessly. power steering fluid can often dry up before it starts to drip so can be tricky to find a leak, look up the bulkhead from under the car if you can, I would think either the steering rack has a slight leak or one of the pipes has a pin hole in it.
Also be casreful because a car with power steering once the pump fails, can happen at any time will make the steering very hard to turn, not what you want really when your not expecting it, so do take care and have it looked at asap.
Posted on Nov 08, 2010
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Posted on Jan 02, 2017
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