The line that has the crimp fittings that are usually silver or black in color. This line will also have screw in end pieces. It goes from large to small thus the "pressure" increase. The low pressure side is a slip on hose and typically uses either regular style hose clamps or band style clamps from the factory.
The output of a power steering pump is the high pressure side which goes to the steering box. It creates hydraulic pressure which makes steering much easier.
The smaller opening would be the pressure side.
The power steering box should not have pressure at the cap.
Underneath the driver's side battery, in line with the steering column
This means you have excessive pressure on one side of your power steering assembly. Your steering box may be worn out. Also, check your tie-rods for excessive play.
Having just changed the pressure side hose on my 1996 Suburban it's actually pretty simple. First you'll need a 5/8 and an 11/16 combination or end wrench. Loosen the fittings to the steering box with the 11/16 from the top of the vehicle. Then climb under, you can reach the fittings on the back of the pump by sliding your hand up past the front differential but you'll find it's easier to see what you are doing if you remove the differential skidplate (4 bolts, 9/16 I think, I was too lazy to remove mine...) It's best to attach the hoses in the following sequence. Return line to pump, Pressure line to pump, Pressure line to steering box, return line to steering box. (The return line has small clamps, approx 1/4" wide, from the metal line to the rubber, while the pressure line has hydraulic crimps about 1" long.) Don't forget to put new o-rings on the line ends (They should come with the new hoses...) Good luck.
make sure you put the switch in right side up and made sure you are pushing in the release button on the steering coloum -left side and make sure there is no pressure on the steering wheel from the steering box, hope this helps
Its a good bet that the power steering fluid is low. If not, the power steering pump may be at fault, a line blocked or the steering box could be worn out.
the hose that has screw in fittings on both ends........the other (with a clamp on the pump end) is the return
Depends on the vehicle. They are turned by the engine to build pressure by a belt. Most have the reservoir for the fluid attached to them and have 2 hoses (one is the pressure line and will be a metal and rubber line that is permanently crimped together and the other is the return line and will be a rubber hose clamped on to metal fittings on both ends) that go from the reservoir to the steering gear box or rack and pinion unit.
Raise the hood. On the drivers side,you can see the steering shaft come through the firewall. Follow it towards the vehicle front, it connects to the steering box.
under the steering wheel, and under the hood on drivers side in a black box under the steering wheel, and under the hood on drivers side in a black box