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

What is this hose under my car?

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Old Apr 20, 2026 | 10:43 AM
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kansukee's Avatar
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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


 
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Old Apr 20, 2026 | 11:07 AM
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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.


 
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Old Apr 20, 2026 | 11:28 AM
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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.

 
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Old Apr 20, 2026 | 12:59 PM
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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.


 
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Old Apr 21, 2026 | 04:21 PM
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I'm pretty sure I have that plugged hose on mine.
 
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Old Yesterday | 02:57 PM
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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
 
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