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(Post Link) post #1 of 3 Old 29-04-10 Thread Starter
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Need some help troubleshooting

Hi Guys

I would really appreciate some ideas with my problem. Might be a few different issues.
First off all, I have the classic split turbo hose symptoms. Loss of power, lots of black smoke with hard acceleration and loud whistling noise. I also have a sulphur smell in the cabin, and a thin deposit of soot under my bonnet.

I have removed the bottom hose between the turbo and inter cooler, and the top hose between inter cooler and intake manifold and inspected them thoroughly, but could not find any splits or holes. The bottom hose is completely covered in oil though. I also noticed some oil in the resonator box. Mainly where the MAF and turbo pipes connect.

These symptoms have been present for a while, but seems to progressively get worse.

I have recently done a full 100 000 km service, including oil change, oil filter, fuel filter and air filter (it was horribly caked up with dust) I was hoping that this would alleviate some of the symptoms, or even clear them. I was suspecting the air filter as the main culprit for the smoking issue and maybe loss of power as the motor could not breath. I also changed the thermostat, as the car was running cold.

Non of these seem to have made any improvement.

Any ideas on where to look next would be appreciated.
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(Post Link) post #2 of 3 Old 29-04-10 Thread Starter
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No ideas guys ?
Just to clarify, the bottom hose is completely covered in oil, looks like it was dumped in oil. Is it possible for the hose to be sub standard, and slightly porous, so it seeps oil ?
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I questioned the hose covered in oil a while back myself. It seems that oil on and in the lower hose is quite normal for the JTD engine! Mine actauly has a drip on it but never seems to be low on oil. EVER.
The JTD does smoke alot anyway. I run mine on BP ultimate and have a K&N Filter in the box. This did reduce the smoke dramatically although it does sound like you are getting massive excesses. Perhaps the oil on the MAF is cauing it to read wrong and putting more fuel in causing some of the black smoke too. I'd go over all the pipes again and perhaps look at the cooler. Maybe a stone has come up from the road and damaged it??? Worst case would be turbo issues I guess?

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