When I pulled my line off, the o-ring was rubber. Still want to replace it, however, and it was included with my power steering pump (not a bad idea to get another one in case it doesn't come with your pump, don't want to have to wait around on an o-ring). One note on teflon o-rings: Usually they are difficult to fit over the end and can tear, but if you hold it under HOT water, they become a lot more pliable and easier to work with if you are having trouble getting them on.

 

I've researched this issue to see if it was another Jaguar unique issue, and apparently, doing doughnuts causes the power steering pump to go on other cars as well. I've read it on Mustang and Camaro owner forums too...

 

Good to know and I did order the Duralast pump so I am hoping the rubber O-ring comes with it.
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Got the Duralast pump from Auto Zone. Used home delivery and received it in 4 days.

Removed the stock pump off my 2005 STR and that was a major battle because you can't raise the engine high enough to get the A/C compressor bottom back bolt out without bending the A/C line coming off the compressor. Or removing the hoses from the A/C compressor completely but that means you need to dump the refrigerant and recharge when your done. Too much extra work for me! I also found that removing both motor mount nuts gives you a tiny bit more room to raise the engine.

So with a little bending of the A/C line and a bunch of wiggling I finally got the A/C compressor loose. I cut 1/2" off the back bottom bolt and it made all the difference in the world.

If you don't have an STR it should be much easier as the "R" has a extra reinforced sub-frame which limits your access to the P/S and A/C attaching bolts. The A/C compressor must be loosened so it can be moved slightly back to gain access to the bottom back P/S pump bolt.

After all that the Auto Zone pump was wrong. See below as the mounting flange was too thick for the long bolts. Waiting to see if I can get the right pump.

Here is what's wrong. Stock STR pump on the left:


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That's what happened to me (see post 16). I got the right one on the second try.

 

Yes I saw that and wanted to post the measurements so you can tell before removing the old pump.

Did both of yours have the same part number?
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Honestly, I didn't even check the part #s. I opened the box and saw it was right and went to work.

 

Well here is the next chapter!

With the wrong Duralast pump #5841 I returned it to AutoZone and they did not have a clue except to order another pump which of course would not get here until next week sometime! This was $240!

Since I know a lot of Lincoln LS stuff is the same I called around and got a V-8 LS pump from Oreilly's. A1-Cardone #21-5353 which was unbelievably cheap at $60!!

Identical pump! Both are ZF brand pumps with exactly the same numbers cast into the pump body. All the mounting points are exactly the same. The output shaft was the same length too. Even came with a pulley and the pulley had the same Ford part number on it of 2W93-3D673-CA!!

When I got it home the pulley on the A1-Cardone pump was obviously bent but my stock pulley was dead straight. So I did have to swap pulleys, just make sure you use the correct puller to remove and the correct pusher to install.

These pulleys are very weak except right at the hub and you must apply all the force at that point only. Very easy to bend the pulley when removing it from the car because when you remove the mounting bolts for the pump your wrench can swing too far and contact the pulley. Just a little more force and you will bend the pulley.

So everything is installed and working. I have a bit of a whine but will see if it goes away as the entrained air in the fluid is worked out. Cutting that 1/2" off the back lower A/C compressor mounting bolt made it go together much better!

The final useful info is all S-Type V-8's from 2003-2008. SC and N/A use the same P/S Pump. This identical pump is also used on all Lincoln LS V-8's from 2003-2006. The wrong mounting brackets appear to be from the V-6 version of the LS and S Type but since I don't have a V-6 I can't be completely sure.

At least we have a much wider choice for P/S pumps that just Jaguar! I checked some Jaguar prices and Motorcars LTD listed it for $720!!
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Good to hear its all working now, and for a steal on the price! Also nice to know that the Lincoln LS pump is a winner! I didn't have any whine after my install and a short bleed (basically let it idle with the cap off the reservoir for about 30 minutes) so yours should go away too hopefully (if you can hear it over the supercharger ).

 

Yes you are right!

After a few starts and some driving I have no whine and it operates just the same as my old stock pump. So far no fluid leaks and that was my initial problem so I can't believe I got the pump changed for $60 plus some fluid.

Just too cheap for a Jaguar repair!!
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