p 38 dse rough running

hi all, i have had my p38 for quite a few months now, and have already chucked money at lol. but i am struggling to solve a few problems with its general running.

currently it is almost misfiring on cold start ups almost chattering, or dragging a cylinder seems to dissapear when warm, but smells of unburnt fuel most of the time. when cold it chucks out a large amount of black soot, again it goes once warm. (no white smoke)

she been fine a few weeks ago i had to go though a massive flood where buy the airfilter got soaked but no water got any further than the filter, thank god. (just rebuild a friends 300tdi disco after hydrolock)
rencently i have done the fan belt tensioner, oil air and fuel filters, new alternator. and shes just had her clutch done to. i have also noticed she isnt pulling as good as she did. and help is much appreciated.

struggling to find where to start looking at

i did mean to add that after the flood she was fine this started just a few days ago before the alternator went and after the fan belt tensioner.

is the bolt that goes in at the top if tensioner near the timing chain ?

Get the FIP timing done.

Sorry Mrs. Wany but rather than taking the shotgun approach and trying things in whatever order can I suggest that this is a time for a diagnostics session. If you stick a location into your on-screen details you might even find some-one on here local to you.

right that would have helped.

My crystal ball says petrol am I right ??

2.5dse. dont usually have shot gun attemps just limited internet lol. shes been fine uptill now,

i do think i could be critcal hence the panic post

defender300td1 said:

My crystal ball says petrol am I right ??

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Don't think there is a 2.5dse petrol

Black smoke missing on one cylinder(or more) after possible water droplet ingestion, I'd start with a compression test.

I'm sure the boys will
Suggest check all fuel leak of pipes and the little map pipe the one that goes from the fuel filter to air manifold . Ps diesels don't misfire on start up

defender300td1 said:

I'm sure the boys will
Suggest check all fuel leak of pipes and the little map pipe the one that goes from the fuel filter to air manifold . Ps diesels don't misfire on start up

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Oh yes they do, or at least what sounds like a miss fire

Datatek said:

Oh yes they do, or at least what sounds like a miss fire

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Runs rough but don't go bang like a petrol

Ps on start up sounds like all your glow plugs arnt kicking in .checking power issues as before with pipes , or turbo hoses and inter cooler

Datatek said:

Don't think there is a 2.5dse petrol

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Lol i just twigged in the heading lol te he

thanks for your suggestions. many bits i thought might help. yes fully aware the dt dosent misfire but, i kind if ment missing or dragging, not when warm.

been out for a drive this after noon seems good enought, i am finding that the turbo seems extra twitchy, but i am probably hearing things.

will do a good overall check tomo, as have to do bearing for MOT !!!! anyway. will take out injectors to check and look into glow plugs.

plugs could explain the unburnt diesal and rough running till warm.

yep glow plugs no question off to westover tomo for some new ens

mrswany said:

yep glow plugs no question off to westover tomo for some new ens

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Don't fit cheapo glowplugs, Delphi, NGK, Bosch or Beru. Cheepo's don't last and sometimes don't work well enough to enable a really cold start.