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

Just replaced a leaky front DS air shock, still getting air suspension fault

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Old Jan 28, 2019 | 10:29 AM
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Default Just replaced a leaky front DS air shock, still getting air suspension fault

Hi guys ; I just replaced one of my leaking front shocks -- I could hear air escaping from the DS shock, and the PS shock has already been replaced once. So; fitted a new shock to the driver's side, now the car has not sank in 2 days even in cold weather (was dropping in the cold) but I am still getting an "Air Suspension Fault" error. Is there a CATs reset procedure ?

Disconnected the battery for a couple of minutes, but maybe I need to do that longer. I remember someone also saying that the car had to be lifted with all wheels off the ground for a reset somewhere, but that might not be the case.

 
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Old Jan 28, 2019 | 12:01 PM
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I would recommend all Jaguar owners to purchase a code reader specific for Jaguar. I have an Icarsoft 930. It works great and costs less than $150.00. Check the air lines that connected to shocks again with soap. 1. There is a small O ring that can easily get crushed or not tighten properly during installation. Harbor fright had a complete assorted O rings set for $15.00. 2. You might want to rebuild your air compressor as well. Its very easy project and there are bunch on ebay for sale.
 
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Old Jan 28, 2019 | 12:06 PM
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Originally Posted by annamiata
I would recommend all Jaguar owners to purchase a code reader specific for Jaguar. I have an Icarsoft 930. It works great and costs less than $150.00. Check the air lines that connected to shocks again with soap. 1. There is a small O ring that can easily get crushed or not tighten properly during installation. Harbor fright had a complete assorted O rings set for $15.00. 2. You might want to rebuild your air compressor as well. Its very easy project and there are bunch on ebay for sale.
Thanks I'll keep that in mind on the code reader - I already have the kit to rebuild the compressor on the bench, just dreaded taking off the front bumper which I have to do anyway to inspect a ballast behind one of the headlights (flickering after cleaning all grounds, etc)

Will try the soapy water trick, thanks for the tips !
 
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Old Jan 28, 2019 | 12:32 PM
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Originally Posted by annamiata
I would recommend all Jaguar owners to purchase a code reader specific for Jaguar. I have an Icarsoft 930. It works great and costs less than $150.00.
+1 on the code reader. The iCarsoft 930 can reset the air suspension fault codes. If the car hasn't dropped after replacing the shock, reset the code and see what you get. I'm assuming you have an X350 or X358 model.
 

Last edited by WLinSTL; Jan 28, 2019 at 12:35 PM.
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Old Jan 28, 2019 | 12:43 PM
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Originally Posted by WLinSTL
+1 on the code reader. The iCarsoft 930 can reset the air suspension fault codes. If the car hasn't dropped after replacing the shock, reset the code and see what you get. I'm assuming you have an X350 or X358 model.
Thanks, looks like a good excuse to buy some more tools which I don't mind hahaha. Is there no other way to reset the air suspension fault codes? Im assuming pulling the battery cables doesn't do anything. Yes I have an x350 - 2004 xj8
 
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Old Jan 28, 2019 | 01:50 PM
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I did my compressor after removing the wheel liner.
 
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Old Jan 28, 2019 | 01:52 PM
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Originally Posted by meirion1
I did my compressor after removing the wheel liner.
Good to know ! so you just took the liner out on the drivers side and could get to everything from there? thx!
 
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Old Jan 28, 2019 | 05:00 PM
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Originally Posted by capthook
Good to know ! so you just took the liner out on the drivers side and could get to everything from there? thx!
That's correct. I was also able to get to the back of the headlight after taking the liner out.
 
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Old Jan 28, 2019 | 05:33 PM
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Originally Posted by WLinSTL
That's correct. I was also able to get to the back of the headlight after taking the liner out.
Awesome! thanks so much that will help out big time.
 
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Old Jan 29, 2019 | 02:26 PM
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You need three hands when putting the compressor back. lol
 
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Old Feb 7, 2019 | 11:52 AM
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Well, I tried the soapy water trick and didn't find anything that resembled a leak - but i'm wondering if it should be done at a specific time? Had cold weather last night, and the front end is sitting low again ; so apparently the system is loosing pressure from somewhere still. Tightened the top connections, seemed like they did both tighten up a bit more on the lower half of the air line assembly (lower brass fitting). It wasn't sitting so low that it looked UN-driveable, as it has been previously. Low suspension warning light comes on only after about 30-40 seconds of the compressor kicking in.
 

Last edited by capthook; Feb 7, 2019 at 04:19 PM.
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