Power steering over pressuring

I have a 96 tecoma 4x4. We have changed power steering pump and rack 3 times with the same results. As soon a you start driving it pushes fluid out of a threaded plug on rack. Any ideas? Been down a year. Lol

 

Sounds kinda like the return line is clogged/collapsed somewhere

 

I'm no mechanic but the lines/hoses are the only thing we haven't replaced. That was my next thought. Getting tired of buying parts. Seems like a power steering system as that would be simple.

 

Do you have a 4 cylinder or a v6, they have different lines, the 4cyl has a longer return line with a length of tubing used as a cooler that could clog. The v6 has a shorter and straighter length but could probably clog too.

 

It is a 6 cyl.

 

Then you have two pretty short lengths of soft tube that would be worth changing and maybe try to blow compressed air through the hardline portion too.

 

If concerned about a blockage, could you take a line off and point it toward a bucket with the engine running? See if anything comes out?

I have seen a lot of shitty reman racks with fittings that are stripped out and lines bent, etc..
But I know you've tried 3 already..

 

Pictures of where it's leaking?

With reman parts it wouldn't suprise me at all to have multiple bad ones in a row, I had a car I had to put 3 racks in in like a month. They all leaked in the same spot, 4th one finally fixed it.
Also had a bad run with reman hydroboosts on dodge trucks, they all leaked in the same spot.

 

It leaks out of a flat plug and also into the boots on each end. Only seems to leak when driven.

 

Till haven't replaced the lines. That's next on my list