My power steering pump is leaking, need to know what size o-rings go on it?

its not eighty dollars bro all i dont was change the pressure line with a new one and then it stop leaking

with power-steering it could be one of three problems. 1- power steering pump could be going out ( normally with the pump the car will whine but will not normally leak and still hold fluid) 2- a leak in your power steering lines ( and can normally be resolved with new lines or sometimes you may be able to bypass and clamp the leak on the line) 3- you may have busted the O rings in your powersteering pump and that will actually cause the pump to leak

hint- alot of people will tell you that you may also use transmission fluid for power-steering this is true you can its that same thing as power-steering fluid just a different color (but dont put power-steering fluid in a transmission, but at the same time if you plan on replacing the pump i would use transmission fluid due to it being cheaper but it will cause the O rings in the power-steering pump to go out quicker to cause a worse leak) so i would recommend to locate the leak first before using trans fluid due to if its in a line you wont have to replace the pump but if its already the pump this is the cheapest fix until repaired

The pressure hose is leaking due to forgetting to install the o-ring. You should disconnect pressure hose install o-ring then tighten!

If is no leak, then maybe you need to bleed the power steering pump. jack the vehicle from the front , and leave the tires free from floor.Take off the steering pump cap, pull the steering wheel all the way to one side and hold for few seconds, let the system to bleed air , then pull all the way to the other side and do the same. somone should be looking the pump to see if air bubles are coming out, repeat as nessesary, If after this proceidure power steering still hard and noisy, replace the pump.

Note: Safety first. Use stand jacks and other security tools to prevent accidents.
Sammyc47.

find the leak and either replace the unit or replace the fluid line if that is the problem

Would suggest replacing the pump again. Should have a warranty. Depending on whether or not the pump came with the reservoir attached those o-rings between the pump and the reservoir may be the culprit.

replace the power steering sensor, 30 bucks at NAPA, I had same problem and now I have O2 sensors bad because the power steering fluid pressurized the electrical lines and killed the O2 sensors

When you remove the oil steering hose, just do a match fit. Match the oil hose with the new one and pre oil the O rings before you connect the fittings. Don't for get to clean all the power steering fluid before you go for a test drive, power steering fluid is flammable. Good luck and hope this helps. Keep me posted friend. 

this is going to be a power steering pump or rack, i would replace the pump, but it will be one or the other sorry no simple fix let me know what happens thanks

I have the same problem with 05 XC90 2.5T.. It seems like there is a problem with the power steering pump. And the only way to fix it is to change the pump. Now i'm trying to use the lucas stop leaking thing as well and will see what happens.