Sudden, unexpected loss of power.

[Berko]

I was just driving along in my 2001 3.0D X5, minding my own business when there was a sudden 'pop' followed by a loss of power and a cloud of black smoke from the exhaust. There was no indication anything was wrong, the temperature remained the same and a quick look under the bonnet reveals nothing obvious. There are no fluids leaking out from underneath.

I'll obviously have a closer look tomorrow but in the meantime does anyone have any ideas?

[Kristophe]

Did the serpentine belt brake?

[Berko]

No, all appears to be fine. No loose hoses or broken belts.

[LeiZ]

Is she able to keep driving? Did you pull over and try to restart? Did you get it towed? We need more info to help diagnose.

Originally Posted by Berko

I was just driving along in my 2001 3.0D X5, minding my own business when there was a sudden 'pop' followed by a loss of power and a cloud of black smoke from the exhaust. There was no indication anything was wrong, the temperature remained the same and a quick look under the bonnet reveals nothing obvious. There are no fluids leaking out from underneath.

I'll obviously have a closer look tomorrow but in the meantime does anyone have any ideas?

[Freestyler]

Have you checked if the pressure hose/pipe from the turbo to the intake has come loose or is cracked?
Because the 'pop'-sound followed by loss of power, is exactly what you will experience if that happens.

[Berko]

Originally Posted by Freestyler

Have you checked if the pressure hose/pipe from the turbo to the intake has come loose or is cracked?
Because the 'pop'-sound followed by loss of power, is exactly what you will experience if that happens.

Yes, first thing I looked at but they were all fine. However, I do have a major crack in the inlet manifold so I've sealed that with steel putty and it seems to have done the trick (I will replace the unit though).

Not sure what the 'pop' was though. Very odd.

[beamertruck]

Clogged injectors can cause that on diesels, I recommend running Amsoils Diesel injector clean + cold flow. It should help. Could also be a piston/compression issue, fuel pump or fuel filter, clogged fuel line that just came clean. Unfortunatly its hard to guess without seeing it or hearing it.