I live on a private road that goes up a mountain. Speed up and down is generally 15mph or less. Going around turns, I lose my power steering for a few seconds. This is dangerous--especially when pulling my boat or motorcycle trailer as this has caused me to almost run off the road. This seems to happen at low speeds and fairly tight turns--never on the highway. Ford dealer found that steering pump wasn't pumping enough fluid so they replaced the pump. The steering problem still exists and am taking it back to the shop again.