Vidyashankara

I have 1999 Boxster Base. The high pressure line is leaking, the one that connects to the PS pump. I need this replaced. I am unable to find DIY instructions anywhere, and indy quoted my $900 for this. Can anyone shed some light on how I could do this. Do I need any special porsche tools?

Schnell Gelb

Suggest you first do some very careful cleaning to determine precisely where it is leaking from.It is easy to misdiagnose this if it is simply overflow from the p/s reservoir. The overflow hose from the reservoir is much too short and may dribble on the p/s line and fool you.
The other issue is the seals in the bottom of the neck of the reservoir.
It is easy to waste money on this!

Vidyashankara

I started the car, turned the wheels all the way and looked at the connections. There is definitely fluid coming from the connections in the pressure line below the driver seat. the indy verified that as well.

Schnell Gelb

Of course it comes from the connection - that is the lowest point. Until you clean everything and then trace to the source we are wasting time here. It may be that the connection is in fact leaking -but there are more likely areas higher up. Remember - Gravity never sleeps

Vidyashankara

Here is a video of the connections there.

The image i posted before was just a generic one I found on google. I may have seen the wrong connections. This one looks like a simple threaded connection. I will try tightening this tomorrow.

When I bought the car, it was not leaking at all, but was low on PS fluid. So the shop added fluid and then the leak started a few days later. The plastic cover around the connectors also has some chips in it.

So tomorrow morning, I'll put the car on jack stands, clean the connectors and see where the leak is coming from. I did this briefly last time. I used a paper towel to clean the area. I did not readily see any leak. Then I started the car, turned the steering wheel all the way. Then I started to see Pentosin emerge drop by drop from between the connectors. I will repeat this tomorrow and get a video of this.

If I need to replace this, I will first try tightening this and replacing the o-ring. do you know the size of the o-ring? I called the dealership and they said there wasn't any o-ring part there. I had to buy the entire line.

ltusler

If its the fitting, you will have to replace the line. As mentioned above you will need 2 open end wrenches to open it. Get the wrenches on each side of the fitting angled apart so they fit in one hand and then squeeze them to crack the fitting open. It will "snap" when it opens. Then it should be fairly loose the rest of the way.

ltusler

Oh and installation is the reverse of removal.

ltusler

Well, someone had to say it!

Vidyashankara

So I cleaned the connectors and the lines and confirmed the leak is coming from the connectors.





The leak originates between A and right most connector that clicks into A.

When I look at pictures of pressure hoses, many of them don't include part A and C. Is this a separate part?

Also, If this requires replacing the hose, how do I go about it? Right now, I think this is what I have to do. Please give me any tips or corrections.
1. Jack up car, open engine compartment from back and behind driver seat.
2. disconnect the hose connections below car, drain whatever fluid comes out
3. Loosen PS pulley bolts and remove serpentine belt
4. unbolt AC Compressor (not sure if this is required?) How do I remove the third bolt in the back?
5. Unbolt PS pressure line and drain fluid
6. remove the pressure line and install new pressure line to pump
7. install AC compressor bolts again, install PS pulley, belt
8. install PS connectors in the bottom
9. top off PS fluid.
10. button up car.

Vidyashankara

Also, I was looking up the pressure hose, this picture has a black spacer between the connectors where I have a leak. Could it be the lack of this thats causing the leak? Can anyone confirm what the connectors look like on their boxster? I have a 1999 986.

Schnell Gelb

That black spacer may be a hack because the threads have been crossed?

Vidyashankara

there seems to be some sort of spacer even in the pic from the service manual picture on #9.

Shred

To replaced this line only isn't too hard. I recently replaced my PS pump, reservoirs, return line.

You need to remove the drive belt, remove the pulley on the PS pump.
Loosen up the compressor, in order to get out for the high pressure line which is under it.

Vidyashankara

Do all the three bolts need to be loosened? Does the compressor need to come out or can i route the line by just moving the compressor slightly?

Shred

I took the 3 bolts off yes.
The compressor just needs to move slightly enough for the line to get out. Do not need to disconnect the lines to the compressor. Kinda lift the compressor up and slide the high pressure line out with it disconnected from the pump first.