Grey Smoke

[csj]

hello when my tdi 115 bhp galaxy 2001 starts and runs when cold loads of grey smoke emited from exhaust , smells like diesel mpg gone down to 26 ish . only noticable when cold does anyone know why it does it thank you

[Jayton]

Could be a number of things.

 

Timing being out could be one cause as could a duff injector(s).

[csj]

Could be a number of things.

 

Timing being out could be one cause as could a duff injector(s).

if injectors are faulty why when warm stops smoking ? also if boot it goes into safe mode . been looking into veins but cant find any pictures any help please

[Willie Krashitt]

Do /Get a diagnostic check done and it will tell you what, if any sensors are not working properly or if an injector is at fault. May be more noticeable when cold as more fuel is used then. EGR valve sticking open when it is cold, only to free off as it warms up isn't unknown either. Too much EGR will give lots of smoke, no EGR can lead to too much boost if you have slightly sticky vanes (see your other thread).

 

 

As an aside though, are you sure it isn't the booster heater glowplug on its way out? Clouds of grey/white smoke from under the car are common when this happens.

 

 

George.

[samyuen]

I had the same problem, but the smoke was actually come out from the aux heater exhaust. Try to disconnect the fuse!

[csj]

I had the same problem, but the smoke was actually come out from the aux heater exhaust. Try to disconnect the fuse!

thanks for replies . booster heater not working . bought the glow plug for it but garage doesnt want to do it . so smoke coming from normal exhaust , anyone in york area that wants to earn some money can change glowplug for me would aprecite it . thank you

[gregers]

is there a reason why you cannot do this yourself?there are very detailed instructions in the faqs on how to do this.

[Mirez]

is there a reason why you cannot do this yourself?there are very detailed instructions in the faqs on how to do this.

 

also pull the fuses now whilst its still working else it'll generate a fault condition and shut down requiring the fault code to be cleared.

[csj]

is there a reason why you cannot do this yourself?there are very detailed instructions in the faqs on how to do this.

 

also pull the fuses now whilst its still working else it'll generate a fault condition and shut down requiring the fault code to be cleared.

would love to take to bits myself but have arthrtas so messing about under the car kills my hands , also scared of snapping bolts again willing to pay and help if someone wants to do , think will need fault codes resetting as well . cheers