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Discussion Starter #1
just picked up a 2005 407 hdi 2.0 auto, it drives lovely but........ it has a very lumpy tick over,and can judder when crawling in traffic, then when you pull off sometimes it knocks for a second or two, chuffs out a load of smoke when you accelerate, then it's fine

there is no knocking or smoke at speed, and it doesn't do it everytime when pulling off, any ideas????
 

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My cure for everything like this is, "Try diesel injector cleaner in the fuel." If that doesn't work, come back, and ask again. If it does work, come back and mention it.
 

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Discussion Starter #3
PureJoe said:
My cure for everything like this is, "Try diesel injector cleaner in the fuel." If that doesn't work, come back, and ask again. If it does work, come back and mention it.
right, put a shot of Wynns diesel cleaner in it and made no difference.

could it be the EGR, anyone got any pics of where it is?
 

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Discussion Starter #8
well just shy of 300 notes later i'm the proud owner of a new injector,

knocking and smoking seems to have gone, but still got a lumpy idle any ideas

can you blank the EGR if so can you do it at the easy end of the pipe at the front of the engine
 
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