steph280

I noticed our 958 has this weird tendency when turning the steering wheel while not moving, the engine would act like it's about to stall. This past week while parked on the side of the road, the engine actually did stall when I turned the wheel and bumped the curb (car not moving). Is this something the dealer can correct? or is it "by design" again?

XR4Tim

Sounds like the power steering pump might be putting too much of a load on things, or could be a very weak battery or alternator. It could even be a vacuum leak that the idle control system can't compensate for at idle when you put a load on it by using the power steering. Either way, it should be correctable.

grohgreg

My new Cayenne hasn't arrived yet, but I doubt it's normal. However having worked with hydraulics on my tractors and implements, it sounds like your steering pump is not bypassing as it should. When the steering reaches extreme stops - or is impeded before reaching one of those stops - a pressure relieve valve should automatically open. It opens a path to permit the steering fluid to flow. When it can't flow, the pump bogs down. And since it's an engine-driven pump, the engine bogs down as well.

Don't know enough about the pump to know if it's repairable/rebuildable at anything below depot level. Hopefully you're still under warranty.

//greg//

steph280

Thanks for the info. Guess I'll have to bring it in and have them look at it.