Jaguar Forums - Jaguar Enthusiasts Forum

XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Vacuum pipes

Thread Tools
 
Search this Thread
 
  #1  
Old 11-26-2018, 02:19 PM
brinny's Avatar
Veteran Member
Thread Starter
Join Date: Sep 2015
Location: Yorkshire U.K.
Posts: 1,296
Received 424 Likes on 251 Posts
Default Vacuum pipes
Evening all. I have a question on the vacuum pipes that go to the end of the inlet manifold on the drivers side. There is a little cluster of 3or4 pipes and a blank. Does it matter which pipe goes to which or are they all supplied the same bar the one that is blanked. I know one is the trans vac pipe not sure on the others. Much obliged.
 
Reply Like
  #2  
Old 11-26-2018, 03:27 PM
Greg in France's Avatar
Veteran Member
Join Date: Jan 2012
Location: France
Posts: 13,336
Received 9,087 Likes on 5,351 Posts
Default
It does not matter. One is the gearbox modulator, one the aircon vac source, one the full throttle vac switch, forgotten if there is another or not!
 
Reply Like
  #3  
Old 11-26-2018, 03:44 PM
brinny's Avatar
Veteran Member
Thread Starter
Join Date: Sep 2015
Location: Yorkshire U.K.
Posts: 1,296
Received 424 Likes on 251 Posts
Default
Ha ha ha, cheers Greg.
 
Reply Like
  #4  
Old 11-26-2018, 04:43 PM
orangeblossom's Avatar
Veteran Member
Join Date: Feb 2013
Posts: 17,587
Received 3,744 Likes on 2,597 Posts
Default
Isn't one of those Vacuum pipes for the EGR Valve that goes on the Cruise?




EGR Valve for the Cruise Control
 
Last edited by orangeblossom; 11-27-2018 at 12:37 AM.
Reply Like
  #5  
Old 11-27-2018, 01:52 AM
Greg in France's Avatar
Veteran Member
Join Date: Jan 2012
Location: France
Posts: 13,336
Received 9,087 Likes on 5,351 Posts
Default
Originally Posted by orangeblossom
Isn't one of those Vacuum pipes for the EGR Valve that goes on the Cruise?
EGR Valve for the Cruise Control
I have a feeling that gets vac from the other end of the manifold, OB (I have removed my cruise).
 
Reply Like
The following users liked this post:
orangeblossom (11-27-2018)
  #6  
Old 11-27-2018, 06:22 AM
Daim's Avatar
Veteran Member
Join Date: May 2014
Location: Bremen, Germany
Posts: 5,907
Received 2,180 Likes on 1,583 Posts
Default
Originally Posted by Greg in France
I have a feeling that gets vac from the other end of the manifold, OB (I have removed my cruise).
Absolutely right there Greg. The CC bellows get their vacume from the A bank front vacume connector.
 
Reply Like
  #7  
Old 11-27-2018, 06:24 AM
Daim's Avatar
Veteran Member
Join Date: May 2014
Location: Bremen, Germany
Posts: 5,907
Received 2,180 Likes on 1,583 Posts
Default
Originally Posted by orangeblossom
Isn't one of those Vacuum pipes for the EGR Valve that goes on the Cruise?




EGR Valve for the Cruise Control
OB, that is by the way not an EGR valve. EGR stands for Exhaust Gas Recirculation. A vacume is no recirculation. That is simply a vacume switch. And even that isn"t fitted to all XJ-S models. My 89 had a working CC and direct draw off the intake manifold. No little vacume switch at all in that area.
 
Reply Like

Trending Topics

  #8  
Old 11-27-2018, 07:19 AM
orangeblossom's Avatar
Veteran Member
Join Date: Feb 2013
Posts: 17,587
Received 3,744 Likes on 2,597 Posts
Default
Hi Daim

I should have said Vacuum Solenoid
 
Reply Like
  #9  
Old 11-27-2018, 07:55 AM
Doug's Avatar
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 24,742
Received 10,755 Likes on 7,101 Posts
Default
Originally Posted by Daim
And even that isn"t fitted to all XJ-S models. My 89 had a working CC and direct draw off the intake manifold. No little vacume switch at all in that area.
I think that vacuum switch was originally part of a recall and subsequently incorporated into normal production for certain markets.

Cheers
DD
 
Reply Like
  #10  
Old 11-27-2018, 12:46 PM
brinny's Avatar
Veteran Member
Thread Starter
Join Date: Sep 2015
Location: Yorkshire U.K.
Posts: 1,296
Received 424 Likes on 251 Posts
Default
Many thanks all
 
Reply Like
  #11  
Old 11-28-2018, 03:50 AM
roman_mg's Avatar
Senior Member
Join Date: Mar 2010
Location: Hodonin, Czech Republic
Posts: 217
Received 69 Likes on 49 Posts
Default
Yes, it was incorporated after recall, there was cases, that CC could not be turned off (when was connected directly to vac) and this switch corrects it.
 
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vacuum hose to heater and vacuum tank
new mexico
XJ6 & XJ12 Series I, II & III
5
04-29-2017 02:28 PM
Vacuum Advance Solenoid Vacuum Valve
heflirob
XJS ( X27 )
0
10-21-2015 06:39 PM
XKR exhaust upgrade - block vacuum pipes?
8bit
XK / XKR ( X150 )
3
08-07-2015 03:25 AM
Vacuum Pipes
aaronb
XJ XJ8 / XJR ( X308 )
2
07-10-2015 06:22 PM
Back to Subforum
XJS ( X27 )
View Next Unread
distributor gasket

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



Advanced Search
Quick Reply: Vacuum pipes


Reply Closed Thread Share

All times are GMT -5. The time now is 03:26 AM.