help please.300 tdi misfiring

its also spewing out black smoke when revved

check intercooler and turbo pipes internally are not de laminating for a start.

manky air filter

thanks for the replies but i put 2 posts about it,this post was an attemt to edit the other post explaining that i cracked the injectors 1 at a time and they all slowed the engine except the last which made no difference.the problem occured quite suddenly as i was driving

andytom1969 said:

thanks for the replies but i put 2 posts about it,this post was an attemt to edit the other post explaining that i cracked the injectors 1 at a time and they all slowed the engine except the last which made no difference.the problem occured quite suddenly as i was driving

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oh deary me

doesnt sound promising does it.lol

sound like that injector is fooked try in in another car and c if ya problem moves to that car or buy and injector to replace it

hi.i tried the injector and it didnt change anything so i took the rocker cover off and 1 of the valves wernt operating so i took the rocker carrier off and it came apart in my hands,its snapped,1 of the pushrods is broken and all but 2 of the rest are bent.when i bought it the air filter was covered in mud and loads of mud was in the air filter box.is it possible that the last owner sucked enough up to hydrolic lock it?thanks for the help

update:fitted a new rocker shaft and pushrods and all seems well.thanks for the help