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Re: Leaking Power steering pressure hose
A power steering pressure hose failure can be
dramatic. Even a small hole in a pressure hose can cause power steering
fluid to rapidly exit the system, usually landing all over something hot
like an exhaust manifold or pipe. Combine this smoke show with a
steering pump screeching from the sudden loss of fluid, and you might
think world war three was commencing under the hood. Power steering
system maintenance is the best way to avoid any smoke shows or sudden
loss of power steering ability. The best time to replace a power
steering pressure hose is before catastrophic failure. Monitoring fluid
levels will provide an alert to power steering system leaks. The system is fairly
simple. A reservoir holds the power steering fluid. This reservoir can
either be on the power steering pump or remotely located. The power
steering pump is at the heart of the system. The pump itself takes power
from the engine via an accessory belt.
The pump pushes the fluid through a pressurized hose to the steering box
or steering rack. Another hose brings the power steering fluid back to
the reservoir once the power of pressure has been used to turn the
wheels to and fro. In this way the show can go on and even the tiniest
of humans can drive and parallel park an enormous vehicle without ending
up with giant arms.
Here, the suggestion and definitive
solution is to "change or replace" no "or patch to fix" some of these
Power Steering Pressure
Hose Replace * Where is all that power steering fluid going anyway? Inspect hoses and
unions. Obvious leaking is easy to spot. Slower leaks are a bit
trickier. Look for dirt gathered around one greasy spot.
* Determine which is the pressure hose and which is the return. The
pressure hose will generally be the one that's leaking, and have
threaded fittings on either end. The return hose will have hose clamps.
* Apply penetrating oil on the end fittings of the power steering pressure
hose. These bolts have usually been in there for a while, and can be
stubborn to remove.
* Place a drain or catch pan under the low point of the pressure hose. The
law of gravity also applies to liquids. Use a flare nut wrench to break
loose the hose fitting. Another trick is to use a plug on the hose end
once removed to prevent leaking.
* Hose routing can either be simple or downright crafty. Remove and save
all clamps and shields on the way to figuring it out. Loosen and remove
the rack or steering box end of the power steering hose. Use a flare nut
wrench! Chances of stripping the bolt are high with a standard box
* Tighten everything back up and add power steering fluid to the "cold"
level in the reservoir. Start the vehicle and turn the wheel
lock-to-lock a few times to bleed the system of air. Top off power
steering fluid. Repeat until system is free of air.
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If the hose itself is leaking (not the connection/end) , replace the hose. If the hose is more than 5 years old, I'd probably just replace it. If it's the low pressure hose (return) and it's leaking at the junction, you can probably replace the clamp. If it's the high pressure hose (with the machine-formed hose ends) then replace the hose - a clamp is unlikely to withstand the pressure and you don't want to take the chance of it blowing off when you're turning.
You need to first diagnose what is leaking. Most power steering leaks are in the pressure hose but not always. Pressure hoses will have screw on fittings and return hoses will usually just have spring clamps or screw type clamps on the end of the hose. Pressure hose most likely, return hoses 2nd, failing rack and pinion assy 3rd and pressure pump last. If its leaking from the bellows on the end of the rack and pinion the you will need a reman unit. Presure pumps are also remanufactured if thats what you need. hoses are replaced with new hoses or standard return hose for the return line.
1. Remove the serpentine belt. 2. Remove the nuts holding the main fuse box over the battery. 3. Remove the reinforcing bar over the battery. 4. Remove the battery. 5. Remove the windsheild washer tank. 6. Now you have access to remove the pump pulley. Without removing the stuff, it may be possible, but it will be extremely difficult. 7. Remove the pump pulley. 8. Loosen the high pressure hose fitting. 9. Remove the return line clamp. 10. Remove the power steering pump mounting bolts. 11. Remove the high pressure hose fitting. 12. Remove the power steering pump while sliding off the low pressure hose. 13. Remove the clips holding the reservoir on the pump. 14. Remove the reservoir. 15. Install new o-ring on the reservoir. 16. Install reservoir on new pump. 17. Install clips to hold reservoir on pump. 18. Install new o-ring on high pressure fitting. 19. Place new pump in position while sliding on low pressure hose. 20. Loosely attache high pressure fitting. 21. Tighten pump to mounts. 22. Tighten high pressure fitting. 23. Install clamp on low pressure hose. 24. Install power steering pulley. 25. Install washer reservoir. 26. Install battery. 27. Install reinforcing cross member. 28. Install fuse panel. 29. Install serpentine belt. 30. Bleed the power steering system.
TO REPLACE THE POWER STEERING PRESSURE SWITCH.REMOVE SIPHON OUT POWER STEERING FLUID BELOW THE PRESSURE SWITCH.UNSCREW THE OLD PRESSURE SWITCH AND SCREW IN THE NEW POWER STEERING PRESSURE SWITCH.MAKE PRESSURE SWITCH HAS THREAD SEALER ON IT.IF NEW PRESSURE SWITCH THREADS ALREADY HAVE SEALER ON THE THREAD DONT NEED TO USE TEFLON TAPE TO SEAL THE THREADS.BLEED POWER STEERING SYSTEM.
What You need is a power steering pressure hose assembly. NO! you cannot just replace it with a piece of rubber hose! That thing takes about 1200 PSI of pressure! The entire hose assembly from the pump to the steering gear is only about $20 and should be available at most any retail parts store.
Hi, they do make a universal high pressure hose for your vehicle. You have to purchase the hose and the fittings seperately. It is made by Russell. The fitting choices are straight hose end, 45 degree hose end and 90 degree hose end. I found these parts at partswarehouse.com . The two fittings and hose will cost about $175 to $200. They ship to you for free. I hope this was helpful.
When power steering hose replacement is required, follow these steps:
With the engine stopped, remove the return hose at the power steering gear, and allow the fluid to drain from this hose into a drain pan. On some cars, the vehicle must be lifted on a hoist to replace the power steering hoses.
Loosen and remove all hose fittings from the pump and steering gear.
Remove all hose-to-chassis clips.
Remove the hoses from the chassis, and cap the pump and steering fittings.
If O-rings are used on the hose ends, install new O-rings. TRW steering gear cylinder lines have gaskets that are serviced as a unit. The old gasket must be pried out of the fittings in the housing before the new lines and gaskets are installed. Lubricate O-rings with power steering fluid.
Reverse steps 1 through 4 to install the power steering hoses. Tighten all fittings to the manufacturer's specified torque. Be sure all hose-to-chassis clips are in place. Do not position hoses where they rub on other components.
Fill the pump reservoir to the full mark with the manufacturer's recommended fluid. Bleed air from the power steering system. Check the fluid level in the reservoir and add fluid as required.