Having problems with your 2003 Ford Expedition ?

For the past few months a sound has been coming from under the hood. I brought it in to have it checked and was told it might be a power steering pump. it is a constant sound that goes up and down with speed of the car. it is a bit annoying. I had the belt replaced along with a few of the pulleys, but it made no difference. I have been next to other ford expeditions and excursions and have heard a similar noise. any ideas?

Posted / edited by AnonymousUser on : 25-03-2019

Answers :

HI. To interpret what type of noise it is in this medium is quite hard, due to the fact that, I cant be there physically to hear the noise. With that said; When a power steering pump device fails or is in decline, it will make a very loud whining noise. This sound will fluctuate, depending on how high the rpm's are at any given time. It can be at low levels at idle and can be quite annoying at high idle when you are turning your steering wheel. You will here it the most when the steering wheel is being turned back and forth. This type of power steering gear damage is due to a breakdown in the internal structure and seal sector. This will cause an unstable pressure, thus, induce that ungodly sound. It is possible to have it rebuilt, but most dealerships will simply replace it.
OK, if you don't like the sound, I would change more than a pulley, I would change the power steering pump (the whole thing). I doubt if the belt against the pulley itself would cause this problem.
\015\012Good luck on this repair.
Repair Help & Product Troubleshooting for 2003 Ford Expedition

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