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valve block leaking through electrical connector
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hack
 


Member Since: 11 Dec 2008
Location: wagga wagga
Posts: 7

Australia 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3
valve block leaking through electrical connector

sorry if im posting this wrong way as its my first go.has anybody had eas front valve block leak through electrical connector and is there a fix.cheers
  
Post #186257027th Sep 2017 11:06 pm
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gt40
 


Member Since: 21 Jul 2015
Location: Cape Town
Posts: 5

South Africa 2010 Discovery 4 5.0 V8 HSE Auto Bonatti GreyDiscovery 4

I had the same problem after a valve block O ring replacement job. My car had been suffering from the front suspension sagging overnight which prompted the job.

It turns out that the O rings in the photo that I bought from a local supplier were incorrect.



They should be 1.2 mm thickness and I was given 1.0 mm. (they look the same). I went through a lot of head scratching and stripping of the valve block before I discovered the culprit. Sourcing and fitting the correct O rings fixed the electrical connector leak problem and the original snag.

If you look closely at the valve block and the way it is molded during construction you will see how leaking air will find its way into the electrical connector.
 2010 D4 TDV6
2010 D4 V8
2010 Range Rover TDV8
CAV GT40 
 
Post #186258328th Sep 2017 1:45 am
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tayaste
 


Member Since: 15 May 2013
Location: Chester
Posts: 7633

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Good find gt40 Thumbs Up
   
Post #186258428th Sep 2017 2:06 am
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garrycol
 


Member Since: 06 Dec 2010
Location: Canberra
Posts: 1114

Australia 

Try this

http://www.ebay.com.au/itm/Discovery-Air-S...2749.l2649
  
Post #186258628th Sep 2017 3:04 am
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hack
 


Member Since: 11 Dec 2008
Location: wagga wagga
Posts: 7

Australia 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

cheers gt40.i had same problem.sagged at front replaced o rings and slowed it down but diddnt fix(now sags slowly and leans a bit left)so chucked it in bucket of water to find leak out of connector.we might both have sourced o rings from same place me thinks.anyway thanks for the advice.also my car 2005 build no silica at all in valve block.do you think hot dry climate aids dryer unit not packing it in?thanks mate
  
Post #186258728th Sep 2017 3:10 am
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hack
 


Member Since: 11 Dec 2008
Location: wagga wagga
Posts: 7

Australia 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

thanks garycol.thats the o ring kit i bought.will check o ring size in kit is correct
  
Post #186258828th Sep 2017 3:13 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10337

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

yeah if the tiny seals are missing it blows the connector off !

So I guess any significant leak inside can cause this.
  
Post #186270828th Sep 2017 11:21 am
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