1984 Toyota PU 4WD 22R Engine Makes Squealing noise at PS pump

You haven't described the noise or whether the noise increases when the pump is under load, or perhaps that is the only time it makes a noise?

As you undoubtedly know some noise is natural when a fluid is being forced through hoses and orifices under great pressure and some systems are noisier than others, especially when the steering is on full lock and all the surplus pressure is diverted through the relief valve.

Perhaps there is an inherent fault that is causing the fluid to become aerated or perhaps it is something more basic and the drive pulley alignment is off.
Perhaps it is a matter of poor routing of hoses and pipes transmitting normal noise into the body and amplifying it.

I believe there are additives available that can help lessen some of the noises of complaining oil.

Hi Tereza.
has anybody checked the pressure hoses of the steering and especially the one which has the one way valve inside whether is the one with the problem?

have the carb rechecked that the float is correctly set and valve is not worn or debris and fuel pressure between 7 to 10 lbs

Did you check the belt?

on my 83 2wd truck, facing the engine, it is on the top left at the front of the engine, with one small hose going in the top, and two hoses coming out of the side.....that is for a 22r engine...which i think yours has also

The whining noise is typically caused by air in the system.

1) Raise the front of the vehicle off the ground. It will be easier to bleed air from the system.

2) Remove the reservoir cap, with the engine off, turn steering wheel completely to the left all the way to stop and then completely to the right all the way to stop. Repeat this several times to rid the system of all the air. Return the wheel to center.

3) Leave the cap off the reservoir and let set for an hour or more if possible. The air in the reservoir will rise to the top. Check the fluid level and fill as necessary.

Good luck, let me know.
Regards,

Suggest it may be power steering fluid, has made it's way on the power steering belt, causing belt slippage, and perhaps glazing the power steering belt. Even if a new one was put on. If so, the belt may need to be changed, also the pulleys need to be cleaned. Make sure those pulleys aren't glazed, by the belt slipping over them.

It could also be that the belt isn't tight enough, and/or worn out.
Make sure the hoses, going from the power steering pump to the steering box, are not leaking, at the back of the pump housing.

Most of the time the pump will make a whining noise when used. this is a warning for a bad malfunctioning pump. if there is no noise during a hard turn, it will most likely be an issue with the steering assembly. heres a step by step guide on checking the pump.


Step1 Check the fluid levels of your vehicle first. Add power steering fluid if necessary before you proceed any further. Step2 Connect the power steering pump and hose to the pressure gauge and shutoff valve. Fit the hose to the power steering pump correctly. Make sure the shutoff valve is open before test the power steering pump. Step3 Idle the engine while turning the steering wheel all the way to the right and all the way to the left to release any air from the power steering pump. Step4 Close the shutoff valve to check system pressure for about 5 seconds. If the shutoff valve is closed longer than 5 seconds, your power steering pump can overheat and this can cause damage to the pump itself. Step5 Compare the pressure reading against the manufacturer's specifications. If the pressure is within limits, your power steering pump is working correctly and you're ready to roll. Step6 Troubleshoot if the pressure reading is not the same as the manufacturers specifications. Consult the manual for your vehicle or for your power steering pump (if you just installed a new one) to determine the source of any further problems.

Hello;
It sounds as if you have a couple of possible problems. First could be the fuel pump. If yoou disconnect the fuel line, put the line in a jar and crank the engine over, you should get a pint in 15 seconds or so. Also check the pressure, should have around 5 psi. Secondly, you may have a vacuum hose cracked, broken, or leaking. Check your hoses and also the carbureator for leaks.
Hope this helps;
Thanks;
Rich
RPM Northwest

I just found 1 of my power steering leaks in my 1990 toy pickup. My high pressure line has a hole in it. I used a florecent die kit to locate the leak. You can get it at Autozone.