Power steering pump question

TRW recomends to use brlck between frame rail and tire becouse there are small valves inside steer box that drains pressure in lock position.


In normal operation steer box do not use full power (pressure) of pump so I sugest problems inside steering box, I think bad valve unit. It is available as spare part, but look for good workshop and follow the manual

 

The gage I use has a manual shutoff valve in the gage line. When you close the valve this simulates peak steering assist demand by the steering gear and maxes out the pump output pressure without the need to operate the steering gear.

When filling a dry system after testing or repair, never start the engine until the system is full of fluid without air pockets. Do this by filling the reservoir and bumping the key or rotating the engine to remove air pockets and refilling until fluid level remains full. When pressure is low or erratic, look for foam and air bubbles in fluid first.

 

usually to remove air from PS fluit it is enought to turn steering wheel from lock to lock 3-4 times. If you use modern ATF as PS fluid, foam is low.

 

That works unless you start the engine with an air bubble trapped, then when the air heats up it belches to the reservoir and pushes fluid out.

 

I have never had a problem on any power steering unit with bleeding it out by turning it left and right. In fact most manual tell you to do this. Start by filling it up to the marks. start the motor and turn left and hold hard for 10 seconds than turn right and hold again hard for 10 seconds. normally this take 2 sets to complete. yes a kinked line will make it hard to turn. also you may want to check the steering box to make sure there is no blockage in it. good luck

 

Was this a TRW power steering pump you installed? I have seen where when the pump was replaced the Tech replaced the pump he flipped the gear around backwards during the install.

 

LOL) really they are marked and I've never used the wrong pump.... It was really difficult quation

 

Crazy situation) my Cascadia look like have bad battery's but I can believe this if I have old batteries but all is new not even 1 month old! So when I try to turn my truck on it's slowly crank than stopped. They said starter is the problem. Well. I change my starter not even a year ago. So the said than wire connections. I went thru all cables and also from starter not start my truck. Than I figured when I crank the high pressure hose to the gear box is super hot! Actually mealting !!! And smoke! The hose !!! So when I move Steerling wheels my truck is turn on right away !!! I'm wtf???? So when I try to start it with out this the hose get huge pressure! Over 3500 psi!!!! The pipe can handle 2800 psi but I know those hose can handle at lost 600 psi more. So I'm not sure is it gear box or oil pump. Anybody have any idea ?

 

If I understand you correctly the high psi p/s hose gets hot while cranking the engine? If that's the case you have a ground issue on the chassis. Electrical current is passing through the hose via the steel reinforcement and causing it to get hot. Common issue really that is often missed.