Damage to the power-assisted steering system is often due to lack of oil in the hydraulic system. Even minor leaks may cause fluid to escape due to the high hydraulic system pressure, thus damaging the power pump.
Grunts that become audible when turning the steering wheel or foaming in the reservoir indicate lack of oil and/or air drawn into the system. Before topping up the reservoir, however, remedy any leaks present on the intake side and replace damaged parts on the feed side.
Was this article helpful?
The History of Porsche Cars through its generational changes. A must have ebook for any Porsche fanatic, this ebook is a reference book for Porsche enthusiasts. Discover all there is to know about the greatest Porsches ever made. All models are fully described and illustrated providing a definitive production history plus an accurate guide to original specs and equipment.