Diesel Engine Starts then stalls

[Cambop]

Hi Everyone,

After your collective help if you don't mind?

I have a diesel 1.8 and the last few mornings it has started, then stalled straight away (within 3 seconds). If you try to start it again straight away it won't turn over. Give it a couple of minutes and it will start, then stalls again. after a couple more minutes it starts and stays running.

It then drives fine and for the rest of the day starts first time and stays running when out and about.

It is a Peugeot 3008, 5 years old 90,000 miles

What are your thoughts? I am worried it is going to get worse and then won't start at all one morning and wondered if it sounds something simple like the battery? But then thought it wouldn't start at all? The overnight temp has been about 15 celsius so not cold?

Cheers
Cam

[LarJammer]

Possibly related to the pump inhibitor, getting a signal when in crank but not with ignition on. A mechanic should be able to run a few tests and figure it out.

[bungz]

Not starting when left for a while on a diesel would make me think air in the fuel system?

I am guessing it is the 1.6 PAS lump, they dont do a 1.8.

[Cambop]

Thanks everyone - I will get the fault code checked.

Hopefully it is just a sensor!

Oops yes 1.6!

[mighty kitten]

Chafed plastic fuel lines are the usual culprit on these , hard to spot as they rarely show any signs of leakage

[Cambop]

mighty kitten said:

Chafed plastic fuel lines are the usual culprit on these , hard to spot as they rarely show any signs of leakage

Thanks Mighty Kitten - so with my limited knowledge does that mean that over night the fuel is leaking from the line, and as a result no fuel is getting into the engine in the morning when starting ... but during the day say 3 / 4 / 5 hours later there hasn't been enough time for the fuel to drain from the line and hence why it starts first go?

[bungz]

Cambop said:

Thanks Mighty Kitten - so with my limited knowledge does that mean that over night the fuel is leaking from the line, and as a result no fuel is getting into the engine in the morning when starting ... but during the day say 3 / 4 / 5 hours later there hasn't been enough time for the fuel to drain from the line and hence why it starts first go?

That's about it.

[mighty kitten]

The air leak allows fuel to drain back , hardly ever any evidence of leakage . Check under the engine cover is the normal place and you need to flex the pipe where it shows signs of chafing to expose the pin hole . Epoxy glue over the hole then wrap with decent quality insulating tape will prove any suspect areas before splashing out on new lines

Edited by mighty kitten on Wednesday 11th July 13:10