Diesel Engine Knocking and Smoking

Diesel Engine Knocking and Smoking

Author
Discussion

selfsoiler

Original Poster:

3 posts

124 months

Sunday 13th July 2014
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I have just a call from my wife saying there is a lot of smoke coming from the back of her range rover sport 2.7 diesel and the engine is making a knocking sound. I have told her to leave it where it is and get a taxi home but as it is sunday I cant get anyone out to it.

Does anyone have any idea what the problem could be?

imagineifyeswill

1,233 posts

173 months

Sunday 13th July 2014
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Sounds like possibly over fuelling or head gasket depends on colour off smoke. Is the RR Sport fitted with a DPF the jaguars fitted with hat engine and DPF inject so much excess fuel to regenerate the DPF that they practically fill sump to over flowing and run the crank bearings.

imagineifyeswill

1,233 posts

173 months

Sunday 13th July 2014
quotequote all
Sounds like possibly over fuelling or head gasket depends on colour off smoke. Is the RR Sport fitted with a DPF the jaguars fitted with that engine and DPF inject so much excess fuel to regenerate the DPF that they practically fill sump to over flowing and run the crank bearings.

selfsoiler

Original Poster:

3 posts

124 months

Sunday 13th July 2014
quotequote all
So it sounds like something that can be fixed then? If its a common issue then there must be people out there who have had this happen to them and had them fixed. Is there anyone on here?

Locknut

653 posts

144 months

Monday 14th July 2014
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She hasn't put petrol in the tank, has she?

If it's over fuelling as suggested, it needs an oil change urgently. It should not be driven because there is a danger of a diesel runaway.

BritishRacinGrin

25,205 posts

167 months

Monday 14th July 2014
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My boss had a catastrophic engine failure in his diesel Range Rover, I can't remember which engine it was. Anyway it was a known fault affecting a number of cars whereby the engine block casting was pourous and was able to leak oil into the gearbox bellhousing, eventually the low oil level caused the engine to seize and this necessitated a replacement engine, which I believe was done under warranty.

packman10_4

245 posts

201 months

Monday 14th July 2014
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Volvo V70 also has a problem with this thou there solution is to run with less oil in the sump ......

Is that the Peugeot diesel in that one ? .... Id be inclined to drop the oil straight out of it and see how much diesel is in there .... also the other thing is as with all DPF motors is to get them hot so that they regenerate if not get it plugged in and do a forced regen ... if the head gaskets have gone u had better have a quite word with the bank manager.

S0 What

3,358 posts

179 months

Monday 14th July 2014
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Locknut said:
She hasn't put petrol in the tank, has she?

If it's over fuelling as suggested, it needs an oil change urgently. It should not be driven because there is a danger of a diesel runaway.
I have this so often it's the fist thing i check, i have 220 Lts of misfuel stored at my yard, i cant use it fast enough cos of all the vehicals i have to drain.

GavinPearson

5,715 posts

258 months

Monday 14th July 2014
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My bet is the crankcase is overfull and oil is now in the intercooler having been drawn by the turbo from the breather system.

Do not start the engine.
Check the oil level.
Drain out oil if overfull.
Remove intercooler and flush.
Only start engine after above work is completed.
Use engine diagnostics on dealer service equipment to show if an injector is over contributing which would likely be the cause of the overfilled sump.

saquibmiah

2 posts

35 months

Saturday 11th December 2021
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selfsoiler said:
I have just a call from my wife saying there is a lot of smoke coming from the back of her range rover sport 2.7 diesel and the engine is making a knocking sound. I have told her to leave it where it is and get a taxi home but as it is sunday I cant get anyone out to it.

Does anyone have any idea what the problem could be?
did you ever work out what the problem was thanks

Jazoli

9,214 posts

257 months

Saturday 11th December 2021
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7 years and 6 months!