Power steering problems?

It sounds like the rack and pinion is bad. Have you checked it for leaks? Check to see if there is PS fluid leaking where the inner tire rods are covered by a rubber boot. Many times the seal goes bad, causes a stiff steering, and when you loosen the boot, it is full of PS fluid.

Let me know what you find. Also, make sure the belt is tight on the PS pump.

There is a pressure relief valve but that should be in the pump so it should be new, too.
You may have a clog in one of the lines. I would disconnect each line at both ends and blow some air threw the lines using an air compressor and a rubber tipped blow gun. Try around 90 psi.

Good morning.

Did you flush the system completely before replacing the pump?

I would start by flushing the power steering system to get rid of all dirt.

Also, the fill tank. I would remove it and clean it all out of old fluid and debris. Then install and add fluid and re bleed the system.

Roy

3.3L/3.8L
1. Remove cap from power steering fluid reservoir.
2. Using a siphon pump, remove as much power steering fluid as possible from power steering fluid reservoir.
3. Open retainer on side of reservoir and remove cables from retainer.
4. Remove clamp attaching supply hose to power steering fluid reservoir. Disconnect hose from reservoir (Figure 1).
5. Remove clamp attaching return hose to power steering fluid reservoir. Disconnect hose from reservoir (Figure 1).
6. Remove bolts and nut securing reservoir in place (Figure 1).
7. Remove reservoir.

Do you mean the pulley is larger in diameter?

Remove the serp belt and spin the pulleys. If it's the tensioner, you should hear something, and make sure there is no play in the bearing. As far as the pump, it could be the noise, but is will worsen when you turn the steering when stopped. Is there a noticeable difference when turning the wheel?

Joe

I never heard of any additive that can quiet a noisy steering pump down, just check its fluid. It may be low, I've heard of changing it, but never saw it quiet a loud steering pump gear or front bearing.

I would try to flush the pump first here is a video to show you how on a similar car with the instructions in the diagram below to show you how on your car.

https://youtu.be/n665wQQq8tI

and

https://youtu.be/MtHG4y_rdMI

Check out the diagrams (Below). Please let us know what happens.

Yes you go from the front and through the pulley
just line up the hole in the pulley with the mounting bolt
its 13 mm bolt head in some rear case they used 10mm
good luck

Just because it's not leaking visually doesn't mean it is not leaking internally of the pump. Honestly I would just have pump replaced. May try searching local salvage yards and web sites such as ebay. Com for a used steering pump to save some $$$

Does it still contain air in the system? If so how EXACTLY do you air it?

BLEEDING THE SYSTEM TO REMOVE AIR

After filling the system, you will have to bleed the system to remove trapped air. This is done by raising the front wheels off the ground, then slowly turning the steering wheel from side to side six to 10 times with the engine off. Do not turn the wheel too rapidly or allow the pump reservoir to run dry. Continue cycling the steering back and forth until no more bubbles can be seen in the fluid reservoir, and the reservoir level remains steady.

Next, disable he ignition and crank the engine over several times while observing the fluid in the pump reservoir. If you see any bubbles or foaming, continue cycling the steering wheel back and forth (engine off) until all of the air is out of the system. Make sure the fluid reservoir is full when you have finished.

On some systems, the use of a power steering pump air evacuator (Devac tool) is required to purge the air from the system.

Other probable area could be a rack and pinion