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Car Forum / Peugeot Cars / December 2006smoking 406
Hi My 1998 406 2.1 dl smokes on start up (black/grey) and continues to smoke up to about 2000rpm around the time the turbo kicks inn, she's had new filters new oil new injectors new glo plugs and a flush through.oh and blanked off the EGR valve.if it was a petrol car I would say she's running to ritch.any one have any ideas as to what the problem might be. > Hi My 1998 406 2.1 dl smokes on start up (black/grey) and continues to > smoke up to about 2000rpm around the time the turbo kicks inn, she's > had new filters new oil new injectors new glo plugs and a flush > through.oh and blanked off the EGR valve.if it was a petrol car I would > say she's running to ritch.any one have any ideas as to what the > problem might be. Run it down to a M.O.T place and ask them could they do a test on the smoke coming out of the exhaust. Yeah done that and i'ts un burnt diesel > > Hi My 1998 406 2.1 dl smokes on start up (black/grey) and continues to > > smoke up to about 2000rpm around the time the turbo kicks inn, she's [quoted text clipped - 5 lines] > Run it down to a M.O.T place and ask them could they do a test on the > smoke coming out of the exhaust. > Yeah done that and i'ts un burnt diesel > [quoted text clipped - 7 lines] >> Run it down to a M.O.T place and ask them could they do a test on the >> smoke coming out of the exhaust. so its getting pass the piston rings. might be time to get rid of it or put some piston sealer in the bores I feel that if it was diesel passing the piston ring then the oil level would rise or if it was oil passing the piston rings then the mot station would of said the smoke was oil burning. it's un burnt diesel not burning oil. > > Yeah done that and i'ts un burnt diesel > > [quoted text clipped - 10 lines] > so its getting pass the piston rings. might be time to get rid of it or > put some piston sealer in the bores > Yeah done that and i'ts un burnt diesel What colour is the smoke? Unburnt fuel is normally white, and is a classic symptom of retarded injection timing on a diesel. If your smoke is black, then this is too much fuel being burnt. Blue smoke is oil. Assuming it is black smoke, then the pump has a sensor activated by the boost pressure. this gives more fuel when the turbo kicks in. It sounds to me that this is stuck open. It is a diaphragm on the top of the pump, and there is normally a small pipe to it from the intercooler, or somewhere on the inlet manifold or piping. Where did you get the work done so far? You would be better trying to speak to a diesel injection specialist, look them up in Yellow Pages. I know the ones round me, but I don't know where you are. Hi I've looked for this diaphragm but the only thing on the top of the pump is wire that runs into the pump under a plastic cover then runs to the ecu unit,Don't know if this helps but the pump is the lucas one. I've been advised that maybe The amount of fuel being dellivered needs to be weekend off? any idea how this is possible. > > Yeah done that and i'ts un burnt diesel > > [quoted text clipped - 10 lines] > to a diesel injection specialist, look them up in Yellow Pages. I know the > ones round me, but I don't know where you are. > Hi > I've looked for this diaphragm but the only thing on the top of the > pump is wire that runs into the pump under a plastic cover then runs to > the ecu unit,Don't know if this helps but the pump is the lucas one. > I've been advised that maybe The amount of fuel being dellivered needs > to be weekend off? any idea how this is possible. Well there will be some way for the pump to know that boost pressure will require more fuel, possibly on the later engines this is handled by the ECU, in which case you have little option but to try a diesel injection specialist, who should know how to check and adjust. The Peugeot dealers only know how to change units. If it burns lubricant, using synthetic oil should stop it or greatly reduce it because synthetic oil won't burn and even it burns, it's not black or blue colour. If the engine is worn, some PTFE base oil additives will work, I've tried it >> Hi >> I've looked for this diaphragm but the only thing on the top of the [quoted text clipped - 9 lines] > specialist, who should know how to check and adjust. > The Peugeot dealers only know how to change units. it's not using any oil but ill give anything a go Many thanks > If it burns lubricant, using synthetic oil should stop it or greatly reduce > it because synthetic oil won't burn and even it burns, it's not black or [quoted text clipped - 14 lines] > > specialist, who should know how to check and adjust. > > The Peugeot dealers only know how to change units. |
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