XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

What is this hose under my car?

Old Apr 20, 2026 | 10:43 AM
  #1  
kansukee's Avatar
Thread Starter
|
Junior Member
Joined: Apr 2026
Posts: 2
Likes: 0
From: Miami, FL
Default What is this hose under my car?

I was doing an oil change and brake job the other day and I discovered something strange; apparently someone cut this hose and sealed one end and left it under the car. The car runs fine and I don’t have any codes but still, this is something I want to have fixed.

Does anyone here know what this hose is? Thanks


 
Reply
Old Apr 20, 2026 | 11:07 AM
  #2  
mhamilton's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 1,224
Likes: 509
From: Raleigh, North Carolina
Default

What year and model is your car?

That is your power steering return line, but no idea why there is a "T" coming out of the rack. If you uncapped the hanging line all of your power steering fluid would drain out. There's supposed to just be a single fitting out of the rack which connects to 3/8" hose which goes to the cooler in the front of the car. All that heat wrap is not supposed to be on there either. It's is supposed to look like the picture below.

The fact that there's two single-ear clamps on the flex lines makes me think someone took a return line from another vehicle and put it on there. No idea why or what they were trying to do.


 
Reply
Old Apr 20, 2026 | 11:28 AM
  #3  
kansukee's Avatar
Thread Starter
|
Junior Member
Joined: Apr 2026
Posts: 2
Likes: 0
From: Miami, FL
Default

Originally Posted by mhamilton
What year and model is your car?

That is your power steering return line, but no idea why there is a "T" coming out of the rack. If you uncapped the hanging line all of your power steering fluid would drain out. There's supposed to just be a single fitting out of the rack which connects to 3/8" hose which goes to the cooler in the front of the car. All that heat wrap is not supposed to be on there either. It's is supposed to look like the picture below.

The fact that there's two single-ear clamps on the flex lines makes me think someone took a return line from another vehicle and put it on there. No idea why or what they were trying to do.

Thanks for replying; it’s a 2004 XJ8

It’s a 2004 XJ8; thanks for replying.

 
Reply
Old Apr 20, 2026 | 12:59 PM
  #4  
mhamilton's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 1,224
Likes: 509
From: Raleigh, North Carolina
Default

Okay just wanted to make sure we were comparing apples-apples. This is the only photo I have from when I was replacing the return line. You can see it should clip in the plastic holder that's attached to the pressure pipe. I can't quite tell, it looks like your pressure line might be incorrect for the car as well. Perhaps the entire rack was swapped for some reason. Neither of the p/s hoses have that heat wrap on them from OE. Just the A/C line.


 
Reply
Old Apr 21, 2026 | 04:21 PM
  #5  
JoeDredd's Avatar
Senior Member
5 Year Member
Joined: Apr 2018
Posts: 337
Likes: 105
From: Greater Manchester
Default

I'm pretty sure I have that plugged hose on mine.
 
Reply
Old Apr 23, 2026 | 02:57 PM
  #6  
Thomas-S.'s Avatar
Veteran Member
Liked
Loved
Community Favorite
Joined: Sep 2021
Posts: 1,009
Likes: 479
From: Nuremberg
Default

I would say that it is original from Jaguar, with the only exception that the hose should not drop towards the floor like in your first picture, but that seems just to be one of the holders that has moved out of position.

Why I say this? Because it looks exyctly like this on my Super V8,built in September 2003, including the T-junction, I am 100% sure that nothing has been done on the car regarding the power steering.

The following pictures are not perfect, but you should be able to make comparisons. I have to do an oil change next month, and then I could take better pictures...




Best regards,

Thomas
 
Reply
Old Apr 24, 2026 | 02:40 PM
  #7  
mhamilton's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 1,224
Likes: 509
From: Raleigh, North Carolina
Default

Originally Posted by Thomas-S.
I would say that it is original from Jaguar, with the only exception that the hose should not drop towards the floor like in your first picture, but that seems just to be one of the holders that has moved out of position.

Why I say this? Because it looks exyctly like this on my Super V8,built in September 2003, including the T-junction, I am 100% sure that nothing has been done on the car regarding the power steering.
That is definitely interesting--must have been something they did on early cars. I can't imagine what purpose it serves (other than for allowing p/s system to be drained), and never heard of an auto maker spending $0.02 on something that wasn't absolutely necessary. But there you go! Guess those are OE.
 
Reply
Old Apr 24, 2026 | 02:47 PM
  #8  
Thomas-S.'s Avatar
Veteran Member
Liked
Loved
Community Favorite
Joined: Sep 2021
Posts: 1,009
Likes: 479
From: Nuremberg
Default

I have been wondering, as well, because I have also not seen anything like it on other cars... but hey, if it makes draining the p/s easier, I'm not going to complain! That's at least what I always thought it is for...

Best regards,

Thomas
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
2500DollarXKR
XK8 / XKR ( X100 )
3
Feb 18, 2026 10:53 PM
Doug5.0
F-Type ( X152 )
6
Apr 30, 2025 04:22 PM
Stosh1017
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
4
Nov 1, 2023 03:05 PM
stevepaa
XK8 / XKR ( X100 )
3
May 30, 2022 07:34 PM
Gunz80
X-Type ( X400 )
4
Feb 12, 2009 11:47 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

All times are GMT -5. The time now is 04:11 AM.