mystery_man11990 Posted June 27, 2005 Report Share Posted June 27, 2005 hey blokes last week my 2001 1.9 TDi starting making music. Everytime I accelerate and the turbo kicks in i get a whooshing noise followed by black smoke out the back. I have no loss of power and have great acceleration? any ideas? I even replaced the intercooler sensor which i thought was the problem because when I disconnected it the smoke and whoosh went away... All the help you could give would be fantastic. Cheers Mike Link to comment Share on other sites More sharing options...
Rustynuts Posted June 27, 2005 Report Share Posted June 27, 2005 Sounds to me like you've split a turbo hose. The boost is being blown out through the hole (hence the whooshing noise) and the engine is overfuelling, hence the black smoke. Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 27, 2005 Author Report Share Posted June 27, 2005 cheers buddy! where can i find the turbo hoses? underneath or on top of the engine? Link to comment Share on other sites More sharing options...
Rustynuts Posted June 27, 2005 Report Share Posted June 27, 2005 Do you know where the turbo is? Follow the air intake from the air filter, and it goes into the turbo. Then the other hose which comes off the turbo will go to the intercooler (not the hot one, that's the exhaust), that's one of the turbo pipes. From the intecooler back to the inlet manifold, that's the other turbo pipe. These run the boosted air down to the intercooler, and back up to the inlet. and if these split, you lose boost. Check every inch of them, and squeeze them to see if they're ok. Chances are you'll find a split in one of them. Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 27, 2005 Author Report Share Posted June 27, 2005 You'll have to excuse my stupidity... but the turbo is bolted to the side of the engine and is "shiney" and as far as i can make out the turbo pipes are the largest under the bonnet? one is "ribbed" and made of rubber (pardon the expression) and the other one is a lot tougher and made out of plastic coated nylon? or something like that? correct? Link to comment Share on other sites More sharing options...
Rustynuts Posted June 27, 2005 Report Share Posted June 27, 2005 Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 27, 2005 Author Report Share Posted June 27, 2005 right! so just to clarify things in my own head as you look at the engine, on your right hand should be the nylon coated one and in your left hand the ribbed one!? --------[engine]------ ribbed nylon Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 28, 2005 Author Report Share Posted June 28, 2005 Well I sepnt all day today looking for a split hose... and didn't find one I've pulled every hose out one by one thats connected to the turbo and can't find a problem. The only thing I didn't take apart was the air filter assembly. however I did notice a lot of thin oil mix in the top hose (out from the turbo then from the elbow shaped hose down to the right hand side where the hose runs off somewhere into the bodywork. Any ideas? Link to comment Share on other sites More sharing options...
Rustynuts Posted June 29, 2005 Report Share Posted June 29, 2005 [ QUOTE ] however I did notice a lot of thin oil mix in the top hose (out from the turbo then from the elbow shaped hose down to the right hand side where the hose runs off somewhere into the bodywork. [/ QUOTE ] It sounds like you didn't inspect all the hoses, if one disappeared off somewhere. From the airfilter to the turbo, isn't a pressure hose, the airflow there is into the turbo so it's pre boost. Where this hose enters the turbo and the other one exits is where it becomes boost pipework, so concentrate on looking from thereon. The one with a light coating of oil is the first hose. Follow this one and inspect it everywhere it goes. If it goes into the inner wing, then find it on the other side, and carry on looking. This hose will run to the intercooler (which looks like a small radiator) and should be hose clipped onto one side of the intercooler. The other hose coming off the intercooler is also boost pipework and you have to follow this hose and inspect it all the way back tho where it connects onto the inlet manifold. It's not uncommon for these connections to blow off sometimes and if this has happenes, you can simply reconnect it. But from your description, it sounds like a split hose. Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 30, 2005 Author Report Share Posted June 30, 2005 Hey rustynuts thanks for all your advice... I found the split hose and changed it at a cost of £10 for the hose... you saved me a fair amount of money from what the dealers would have charged. thanks buddy Link to comment Share on other sites More sharing options...
mystery_man11990 Posted June 30, 2005 Author Report Share Posted June 30, 2005 one last question... should that coat of oil be in the boost hoses? Link to comment Share on other sites More sharing options...
Wobby Posted June 30, 2005 Report Share Posted June 30, 2005 Hi Well it is in mine, very wet around a couple of joints. It runs ok but has 136k now. Does this oil around joints mean the turbo is on its way out? My 9o bhp Passat had this at 100k and is still going at 260k without any turbo change. RobK Link to comment Share on other sites More sharing options...
Rustynuts Posted June 30, 2005 Report Share Posted June 30, 2005 A thin coating of oil is normal. Link to comment Share on other sites More sharing options...
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