Discodave26
Member Since: 23 Feb 2020
Location: Gosport
Posts: 2
  
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| Front suspension won't raise |
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Hi all,
I've read through lots of threads but can't find an answer to my problem.
Suspension issue:
Been away for a couple of weeks and came home to my discovery 3, 08 plate sat on the bump stops. Ran the engine, came up to normal height (front slowly) after a few min, got a bong; normal height only.
Next morning, front is on the stops again. So started the car, raising slowly bong, but the front didn't raise.
Had a few codes: can clear all but 1131, air supply, keeps coming back.
Disconnected the pump discharge and cleared code, pump ran and lots of air produced by the pump. Changed the seals in the pressure switch valve block and the front valve block (no air vented when I disconnected). Dropped the reservoir and had to drain air first, so don't think that's leaking. Just needs a paint and a fixing bolt drilling out 🤦‍♂️.
I can't find any leaks on the front system.
Taken all the electrical connections off, cleaned them and put back on.
A bit stuck now, any ideas?
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 17th Mar 2022 2:49 pm |
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Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1791
 
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In the front valve block, did you make sure the small plungers in the valves where free? as these are what controls the air to the air struts.
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| 20th Mar 2022 4:24 am |
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Yankee_Rover
Member Since: 02 Jun 2021
Location: Seattle
Posts: 183
  
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In addition to what’s already been said, it’s always possible you introduced a leak after repairing an old one. I seem to always get a leak at a Voss connector after refurbishing and replacing a valve block; the connectors are reusable but they do wear out!
Check for leaks around all fittings using soap water in a spray bottle.
Slow height transitions can be caused by clogged up desiccant in the air dryer. If you haven’t refurbed this in the last 24 months, it should be on your list. Old desiccant flowing through the system is what causes leaks in the valve blocks, so if not done you’ll have valve block leaks again soon enough. 2008 LR3 HSE, 4.4L V8
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| 22nd Mar 2022 2:35 pm |
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