I have a 2006 Ford Taurus. After 2 months it has lost all the power steering fluid to the point where you could see the gears.the dealer can't find any leaks. What could be wrong

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?

you have a power steering leak either the pump itself or one of the power steering hoses has a hole in it.the low brake fluid light is probably the fluid sensor in the master cylinder providing the fluid level is not low.the sensors tend to stick and need to be tapped or pushed with your finger until it frees itself.

the steering gear box has a problem, there is a problem with the diferential fluid pressure valve, these will only act up under a load so jacking the truck up is not a valid test, replace the sterering gear box.

Item Part Number Description 1 - Steering wheel 2 - Steering column 3 - Boot 4 - Tie-rod 5 - Tie-rod end 6 - Steering gear 7 - Steering gear to fluid cooler hose 8 - Fluid cooler 9 - Power steering pressure (PSP) switch 10 - Power steering pump 11 - Fluid supply hose 12 - Fluid reservoir 13 - Pump to steering gear pressure line 14 - Steering gear pinion extension

It may quiet down for a while but the damage is done so the pump will eventually need to be replaced.

Dealer, but did you check the Power steering fluid level??or any leaks. There are two hose that connect to the gear box from the power steering pump. if the pump is low on fluid you lose your power steering, if the hose has a leak or it blew and lost the power steering fluid then you lost your power steering again. 
Check the fluid level to the power steering pump and any leaks or broken hose to the gear box.
Keep me posted, be glad to help and good luck.

Here is a pic.

[IMG]http://i253.photobucket.com/albums/hh43/chuck943/DG1690A.gif[/IMG]



1 3A674 Power Steering Pump 2 3A714 Power Steering Pressure Hose 3 3C510 Power Steering Hose Bracket 4 3N824 Power Steering Pressure Switch 5 3504 Steering Gear 6 3A713 Power Steering Return Hose (Gear to Cooler) 7 3D746 Power Steering Fluid Cooler 8 3493 Power Steering Return Hose (Cooler to Pump

try replacing the o ring or use double o rings between the reservoir and pump, pressure builds from use and the fluid blows out of this o ring even after the vehicle is off. When the dealer replaces the pump they re-use the reservoir and o ring so the problem does not get fixed. The fluid runs down the pump and the lines to the rack, instead of washing the engine and observing where the fluid is leaking from, they replace good parts until they find the problem. Sometimes one o ring isn't enough.

it could be a power steering line (there are 2) or the pump or the steering gear. you have to have someone get in there and pinpoint where it's leaking from.

Hi Salmancasmi,
On vehicles with a hydraulic booster you will find that the power steering pump supplies fluid through bot the steering gear box and the hydraulic booster.
Just a visual inspection of the system should point you to the part that failed, most likely a hose. These can be obtained through your local parts store or dealership.
Locate and replace the failed part, refill the reservoir with power steering fluid. With the front of the truck on jack stands, start the truck and turn the steering wheel from full left to full right several times while pumping the brakes. This will remove the air from the system. Recheck for leaks and fluid level and you'll be on your way.
Hope that helps, good luck.