Vacuum solenoid, C5 car diesel. Correct hose locations

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Gibbo2286
Donor 2020
Posts: 4473
Joined: 08 Jun 2011, 18:04
x 710

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by Gibbo2286 »

There is often some oil in the tube from the intercooler to the turbo, it comes as vapour from the engine breathing system over quite a long time and settles at the bottom, just clean it out and forget it.

Alternatively it can come from failing turbo seals but in that case you would normally have blue smoke from the exhaust.

belaprops
Posts: 61
Joined: 05 Dec 2019, 23:20

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by belaprops »

Thanks Gibbo.
That makes sense, but the sudden escape of this oil on the top of the intercooler was after I corrected the vacuum pipes connection the solenoid valve which controls the big valve in the airdoser , so I thought it might have highlighted another problem in this system.
I followed all the advises on here, but still my engine is not running smoothly other then around 1500 to 1800 rpm

User avatar
KennyW
Donor 2020
Posts: 1883
Joined: 17 Jan 2006, 22:22
x 37

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by KennyW »

Turbo air piping.jpg
Here's the turbo air piping for your car.

Kenny

belaprops
Posts: 61
Joined: 05 Dec 2019, 23:20

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by belaprops »

Thanks Kenny.

admiral51
Donor 2019
Posts: 1823
Joined: 24 May 2007, 10:11
x 121

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by admiral51 »

Is the Air Doser the double butterfly type, it looks like it is from the diagrams.
I know expense is a relative term, but i would check that as a priority, are both butterfly valves free to move and revert to normal at rest positions .
Colin

belaprops
Posts: 61
Joined: 05 Dec 2019, 23:20

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by belaprops »

Yes, its a single port airdoser, and the valve moves to open which is it's rest position and closed at idle. So that is operating

User avatar
KennyW
Donor 2020
Posts: 1883
Joined: 17 Jan 2006, 22:22
x 37

Re: Vacuum solenoid, C5 car diesel. Correct hose locations

Unread post by KennyW »

Colin,

Between my engine and Belaprop's they changed the airdoser port from double to single , I think the RP was 12382.

I'll go and check for the correct number

Kenny
Turbo air piping.jpg
after 12382
DW10CTED4 Doser Part.PNG
before 12382