hey i have to replace the p/s pump and was wondering how you bleed the air out of the system and help would be much appreciated
Get the wheels off the ground, turn slowly from left to right keeping an eye on the fluid level. When the pump stops making a noise it is bled. This can take a while, mine took about 25 times.
If you're only replacing the pump and are careful that you don't let the hoses drop when you remove the pump and fill the pump reservoir and let it flood the pump you should not need to bleed the system as there will be no air in it. At least thats the theory. (same as bench priming a master cylinder to avoid bleeding brakes).
There will still be a small amount of air in the system. It creates an airlock that you have to work right through the whole system. I did all that you mentioned hako but it still whined until the air was out, and it took about 100m of driving for the steering to come back too.
Not_An_Abba_Fan Having power steer problems myself. When you jack up the front of the car do you turn the wheels with the car running or off? Silly question but i need to know. Thanks. I think i have an O-Ring problem.
Engine off, according to gregory's. You just turn slowly lock to lock a number of times and keep topping the fluid up as necessary... Thats how I did it when I replaced my pump.
yeh its alot easier to bled it if u just turn the wheels manually with the engine off. generally 10 times lock to lock either side will do it i've found.
Then do it a couple of times with the engine running to get the fluid moving through the whole system.