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PeteB

Member

Registered: 2015-04-13

Posts: 8

Intermittent power loss on Dispatch

Hi - hope these symptoms ring a bell with someone.  We've just bought a 56 plate Dispatch, and the EGR valve had had one of its two pipes broken off.  That's now been replaced, but the van continues to show a few very odd things:
there is an occasional brief loss of power under light load
there is a high pitched whistle at particular revs - eg around 55 to 65 in top
the engine management light comes on for a short while at seemingly random times.

Any ideas, please?
Thanks
Pete

Tiree

Administrator

From: Galloway

Registered: 2013-09-20

Posts: 336

Re: Intermittent power loss on Dispatch

Evenin Pete and welcome

I'm guessing you might know more about engines than me (wouldn't be hard!)

My turbo went offline for an hour, randomly, on a long trip about 6 months ago. Only time I've ever seen the engine management light on. Hasn't happened since.

So I tried to find out what might cause such a thing and ended up reading this document relating to the 2.0hdi / 2.0jtd (dw10) engine :

(skip to sections 9-2 and 9-3)

http://www.peugeot206cc.co.uk/repair-20 … bbm2k3.htm

I guess if you feel you can rule out the EGR valve itself and it's still misbehaving - it could be the EGR solenoid or one of the sensors that control its use:

- coolant temperature
- engine speed
- engine load (the position of the accelerator pedal)

Engine diagnostics might offer some help.

Good luck! Be interested to hear how you get on :-)

Tiree

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2006 Citroen Dispatch 2.0HDi bought in July 2013 - Partial camper conversion ........

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

Bother!  I knew I'd leave something out . . . it's an ordinary 1.9D - non turbo.

Sorry about that - but thanks for the speedy response

Pete

Tiree

Administrator

From: Galloway

Registered: 2013-09-20

Posts: 336

Re: Intermittent power loss on Dispatch

No prob Pete :-)

I'm afraid I've no idea if any of the EGR valve stuff mentioned is relevant in that case - obviously you still have one and something must control its use but no idea if a problem there would explain the symptoms.

Other thing that springs to mind is a vacuum leak - which can have some weird and unpredictable consequences I believe. And it might explain your whistling sound.

T

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2006 Citroen Dispatch 2.0HDi bought in July 2013 - Partial camper conversion ........

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

OK - that sounds like a good idea; I remember a similar whistle from the inlet manifold of our old Riley ! & just to show my engine ignorance is far greaer than yours . . . any suggestions where to start looking for that on the Dispatch?
Cheers

Tiree

Administrator

From: Galloway

Registered: 2013-09-20

Posts: 336

Re: Intermittent power loss on Dispatch

Hah - yeah I'd struggle with that too

There are tips on youtube and via google on how to trace vacuum leaks but not specific to your engine as far as I've seen.

Might be worth a look anyway.

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2006 Citroen Dispatch 2.0HDi bought in July 2013 - Partial camper conversion ........

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

OK - thanks for that; I'll keep looking.  Unless anyone else has any ideas?

Cheers

Tiree

Administrator

From: Galloway

Registered: 2013-09-20

Posts: 336

Re: Intermittent power loss on Dispatch

You get any further on with that one Pete?

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2006 Citroen Dispatch 2.0HDi bought in July 2013 - Partial camper conversion ........

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

Nope.  Spent a while following all the vacuum-looking tubes & pipes around the engine in the hope of finding a loose connection or a wear point that might be letting air in, but no joy.  Just living with it at the moment - it only occurs when the engine is under slight load, so I'll just have to learn to coast  along & then floor it every now & again . . .

Still no idea either why the radio reception's so rubbish - on two different radios.  Ah well, these things are sent to try us.

Thanks for the follow-up

Tiree

Administrator

From: Galloway

Registered: 2013-09-20

Posts: 336

Re: Intermittent power loss on Dispatch

Reception in my van was terrible too - thought I'd broken a circuit or something on the (relatively new) head unit. So replaced it. Same deal.

Eventually realised that if I had anything plugged into the lighter socket (which I almost always did) - even just a charger cable not attached to a device - the reception was useless - but if I unplugged it the receptions was perfect.

Just in case you're in same boat :-)

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2006 Citroen Dispatch 2.0HDi bought in July 2013 - Partial camper conversion ........

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

You got my hopes up there!  I too pretty much always have something - well, the phone - plugged in.  No difference unplugging it, though - sorry!  I wondered whether it depended on the powering of the radio - ours will only come on with the ignition (like the lighter), but as far as I can find out it's fuse 25 that gives it permanent power (at least, according to http://www.berlingoforum.co.uk/thread-2492.html), and that's there, which is puzzling in itself.  Maybe the lighter should be permanent instead - how's yours set up?

Cheers

fearlessfred

Member

Registered: 2015-09-18

Posts: 2

Re: Intermittent power loss on Dispatch

whistling noise and the cause of the low speed issue is air leaks on the intake side, change O rings on plastic manifold to metal manifold and the big O ring where the EGR valve goes into front of air intake.

PeteB

Member

Registered: 2015-04-13

Posts: 8

Re: Intermittent power loss on Dispatch

Hi - apologies for not following up sooner.  The faltering at 50mph in top stopped one day a few months back, & from being a constant occurrence it has gone to non-existent.  Completely.  The whistling is still there sometimes, but that wasn't coming from under the bonnet anyway.  The bad interference on the radio has gone too.  I wish I could point to some cause, but I can't - it was just an ordinary day; faltering in the morning, then fine when used again in the evening.  The engine management light has appeared briefly 5 or so times over the months, as opposed to several times each journey.

Go figure, as they say.  I'm just glad it's behaving itself.  Thanks for all the suggestions - sorry I can't give a proper solution.