I have seen a lot of people replace pumps only to have the steering line cause the problem. I do not have the specs for the pump available, but you will need to test within a given RPM range. You would then know if the rack and pinion was bad. Then it would be a question of the rack and pinion failing to move if adequate pressure was provided. Autozone, Oreilys and Advance have tool loaner programs.Ī good repair shop would hook a pressure gauge up to the Power steering lines down at the rack and pinion and measure the working pressure of your pump. Sometimes you need to remove the pulley before taking the pump off. While you are doing that, check with your Autoparts store about the Power steering pully if you are buying a remanufacturered pump. You want to check the line I mentioned first, before removing the pump. The steering pump comes out after you get everything out of the way. The foaming reduces the efficiency of the pump. This can cause pump failure, but it also can cause air to get in the lines and cause the pump to foam the fluid. Over time the plastic clips hold water and salt and will eat through the metal line. You will see that the fluid line has both metal tubing and rubber hose and it runs through body clips by the frame. Hello, Before you give up on the Power Steering pump, check out the bottom steering line that goes from the reservoir to the front of your Expedition. Good luck, hope it\'s not the rack and pinion. Hopefully you will find a leaking hose or fractured reservoir, but keep looking, air flow may be blowing the leaking fluid back and under the car. If a lot of fluid, the seals in the rack and pinion are gone. You should be able to find the leak-it will only leak to the outside-to check the rack and pinion for leaks, right where your tie rods come out of the gear and go to the wheels for steering, will be a small rubber boot encasing the tie rod and the end of the rack assembly-on both ends is a boot and a tie rod-peel back the rubber boot from the gear ass\'y, it should be dry. Leaks could develop at the pump, the fluid reservoir, or the two hoses to and from the rack and pinion, or the seals inside the rack and pinion may have failed. These two hoses are usually routed close together at least part of the way, some may even be held together with brackets. At the same end where the power steering fluid hose enters the gear will be a fitting for a return line back to the fluid reservoir. The power steering pump pushes the fluid through a high pressure hose into the rack and pinion-the steering gear mounted below and behind the engine-and holds pressure within the rack that enables power assisted steering. No, the power steering is entirely a separate and sealed system, wholly external to the engine.
0 kommentar(er)
