Jimm 12/15/2012Expense is relative / variable term. For some, just the parts alone may be 'expensive'. Anyway, the specific cost can only be determined once the exact cause of the fluid leak is known. Try the 'How-To-Guides' feature on the AutoMD website for the steps to check the steering system for leaks.
It depends on where / what the source of the fluid leak is; power steering hose, power steering pump, steering rack and pinion - just a few examples. Try the many on-line auto parts sources; such as - www.autopartswarehouse.com or www.rockauto.com for the replacement parts.