Question about 1999 Mercury Sable

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Power steering fluid foaming & backing up out of pump

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That is signs of a leak
most likely cause is the rack

first start by draining the pump by removing the lower hose that is attached with a hose clamp

then refill and bleed

I suspect the foaming will return within a day

Posted on May 21, 2010

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1 Answer

How do you chang power steering fluid


if you remove the return hose end over a bucket you can drain out a lot of the fluid. then reconnect hose and fill power steering fluid making sure you get all the air out of the system. you can tell by there not being any foam in the power steering pump after purging air from the system and letting the car sit. to get all the air out you turn the steering wheel from lock to lock(left/right) and check fluid level and for foam.

Aug 17, 2014 | Cars & Trucks

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I just recently replaced the power steering pump in my car after that we bleed the line and everything seemed fine the next day power steering fluid was spewing out the cap and I can't figure out why now...


there is still air in the system-jack the front of the car off the ground turn the key just until steering unlocks and turn the steering wheel completly side to side at least a dozen times-watch the fluid level it most not run out of the reservoir or it will suck more air into system and continue to foam-cheers Denny

Nov 03, 2013 | Cars & Trucks

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When your power steering pump goes out does it lock up your steering wheel


I doubt it.
Usually when the pump fails it smokes the belt.
If the steering wheel will not turn and the fluid is contaminated, I would say the problem is the gear box or rack and pinion depending on the make model and year.

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How do I know if my Power steering unit(?) has to be replaced


no power steering fluid would cause the pump to overheat, damaging seals.
the foam might have been pump cavitation causing injestion of air in the fluid, (makes the hydro fluid "frothy")
spraying ANY lubricant on the belts will cause them to slip and make a squeaking/squealing noise.

check the location of the leak, wipe down the hoses (cheap causes for leaks) fill the power steering. put some newspapers under the car, start the car, turn the wheels lock to lock, shut off car, check for leaks, should tell you if it is a hose or connection, or rack unit

Apr 16, 2012 | Mazda 626 Cars & Trucks

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Can hydraulic oil be substituted for power steering fluid?


Probably not. There is enough trouble with foaming and cavitation in the power steering pumps when the CORRECT fluid is used. Why would you even ask? Power steering fluid is NOT that expensive - go buy some.

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1 Answer

Cannot get my power steering pump that I replaced to stop foaming. I cannot get the air out of the system


CHECK POWER STEERING FLUID LEVEL.SOUND LIKE ITS VERY LOW CAUSING CAUSING MORE AIR SYSTEM.WHICH WILL CAUSE FOAMING.LET VECHICLE SET UNTIL AIRATED FLUID SETTLE DOWN.TURN STEERING TO THE LEFT.CHECK POWER STEERING FLUID LEVEL.ADD FLUID TO COLD MARK LEVEL ON DIP STICK.CRANK UP VECHICLE.TURN STEERING WHEEL LEFT TO RIGHT WITH OUT STOPPING SEVERAL TIMES.THEN CHECK POWER STEERING FLUID.DOING THIS BLEEDS AIR OUT OF THE POWER STEERING SYSTEM.

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Power steering fluid foaming & backing up out of pump


It will foam when it's low and getting air in the pump mixing with the fluid. Using the proper method check the fluid and add if needed.

Mar 26, 2010 | 1999 Mercury Sable

3 Answers

2003 expedition replaced p/s pump and steering rack. it is still hard to initiate a turn in either direction regardless of speed


raise the truck up and turn the wheels left to right, you most likely have air in the lines.

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1 Answer

POWER STEERING FLUID CONTAMINATED--FOAMING


Hi Patsy

Sounds very much like your P/Steering Fluid is contaminated.

Possibly condensation, or someone is playing tricks on you ?

I had a friend with a BMW, ask me for help, few weeks back.

He had put just a little brake fluid in by mistake, and it gave exactly your problem.

You will have to change the Power Steering Fluid in the system.

Good Luck !

John.



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1 Answer

2000 Alero power steering pump


Air in lines. Start car and turn full left and full right several times. then let it sit till the foam is gone and top off the fluid and repeat.

Dec 26, 2008 | 2000 Oldsmobile Alero

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