Citroen Relay 2012 engine noise

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

Moderator: RichardW

Shaun2012 relay
Posts: 5
Joined: 15 Nov 2020, 10:40

Citroen Relay 2012 engine noise

Post by Shaun2012 relay »

Hi guys,

I've just started my Citroen Relay 2012 2.2 130 Hdi (puma C) from cold and discovered a slight smell in the cabin and an odd sound (sounds like something is loose and rattling?).

Couldn't attach vid but have uploaded it to vimeo:

Am fitting new dual mass and clutch next week but am unsure as to what this other sound can be. Its coming from the left of the engine bay and remains there regardless of clutch pedal position.

Sorry, I know this is fairly vague but does anyone have any suggestions as to what it could be?

Thanks

Shaun

wheeler
Posts: 4383
Joined: 21 Sep 2002, 19:07
x 164

Re: Citroen Relay 2012 engine noise

Post by wheeler »

Sounds like one of the injectors has come out/sitting loose.
Dont run it anymore until you have checked this as the bolts holding the injector clamps down can shear off in the head.
If you have gotten away with it without damaging the bolts fit new bolts with loctite & torque them down correctly.
The smell will be combustion gasses leaking out.

Shaun2012 relay
Posts: 5
Joined: 15 Nov 2020, 10:40

Re: Citroen Relay 2012 engine noise

Post by Shaun2012 relay »

Cheers Wheeler. Have asked around and injectors are definitely the most likely culprit.

Shaun2012 relay
Posts: 5
Joined: 15 Nov 2020, 10:40

Re: Citroen Relay 2012 engine noise

Post by Shaun2012 relay »



Morning update. Nothing seems loose to the touch. Could be the seals?

Shaun

User avatar
myglaren
Forum Admin Team
Posts: 18381
Joined: 02 Mar 2008, 14:30
x 1098

Re: Citroen Relay 2012 engine noise

Post by myglaren »

Look around the base of the injectors, there may be a coal-like deposit that will show which one is leaking if it is a seal.
You should also be able to hear a 'chuffing' noise from it.

Shaun2012 relay
Posts: 5
Joined: 15 Nov 2020, 10:40

Re: Citroen Relay 2012 engine noise

Post by Shaun2012 relay »

all 4 have deposits to the point where both clamps are covered with the coal like stuff.

Is it normal for all for to br like this?

User avatar
myglaren
Forum Admin Team
Posts: 18381
Joined: 02 Mar 2008, 14:30
x 1098

Re: Citroen Relay 2012 engine noise

Post by myglaren »

Nope. Especially nope to all four. When mine went it was only one.

Shaun2012 relay
Posts: 5
Joined: 15 Nov 2020, 10:40

Re: Citroen Relay 2012 engine noise

Post by Shaun2012 relay »

Ok. Will get some new seals and get my mechanic to take a look.

Thanks for the help!

User avatar
myglaren
Forum Admin Team
Posts: 18381
Joined: 02 Mar 2008, 14:30
x 1098

Re: Citroen Relay 2012 engine noise

Post by myglaren »

Hope that cures it but don't forget Wheeler's advice re the clamp bolts, they are a very common problem with the 1.6 and can lead to far more serious problems with this engine - have a read through some of the relevant posts, it can be quite frightening.