car very smokey

2002 1.4hdi 16v mileage 126609----------------car hard to start at times---if car sitting taking over and u rev its ommitting a very large amount of white smoke-------even when driving it takes turns of bursts of white smoke-----------mechanic(not citreon trained) ruled out cyclinder head gasket problem-----diesel filter changed and oil and oil filter 4 weeks ago---he discoverd leak off connectors leaking diesel-he changed the rubber seals in all 4 and cleaned excess diesel---but there is stll diesel appearing in all 4 injector areas(not sure where its coming from)---he ran computer scan-only faul;t showing was fault in injector 4----he suggested i change it and replace glow plugs-i asked will this cure smoke problem-he said i hope so-which was not very reassuring---car driving 100% not missing but big smoke problem----any suggestions as to cause of this other than his solution-i dont think hes 100% sure---he said maybe oil seal in turbo may be faulty as well---- 3 differant garages told me they didnt touch these cars as they where to difficult to work at---citreon agency quoted me £150 to clarify what was needed to fix and cost involved-bit steep i thought any help appeciated thanks

Hi chevy790

chevy790 wrote:mileage 126609----------------car hard to start at times

Check injectors for leakoff, suspect faulty injector(s)

https://citroenc3owners.com/diesel-citro ... -t901.html

chevy790 wrote:-if car sitting taking over and u rev its ommitting a very large amount of white smoke-------even when driving it takes turns of bursts of white smoke-

Probably due to injector problems.

chevy790 wrote:he discoverd leak off connectors leaking diesel-he changed the rubber seals in all 4 and cleaned excess diesel---but there is stll diesel appearing in all 4 injector areas(not sure where its coming from)

Its probably coming from an injector, excessive leakoff is overloading the return system.

chevy790 wrote:he ran computer scan-only faul;t showing was fault in injector 4-

There are several fault modes, each identified by a code. The code would be helpful to find out a bit more about the fault.

chevy790 wrote:he suggested i change it and replace glow plugs

I would not suggest this. Its potentially very expensive should they break and will make no difference.

chevy790 wrote:-i asked will this cure smoke problem-he said i hope so-which was not very reassuring

You asked the right question, I would switch mechanics ASAP.

chevy790 wrote:car driving 100% not missing but big smoke problem----any suggestions as to cause of this other than his solution-i dont think hes 100% sure

Do the leakoff test and be prepared to change from 1 and up to 4 injectors.

chevy790 wrote:he said maybe oil seal in turbo may be faulty as well

may be, but maybe not. You will need to look to see the oil in the turbo compressor side and poor emissions at the MOT.

chevy790 wrote:3 differant garages told me they didnt touch these cars as they where to difficult to work at-

I would pick a different garage, they are not that difficult to work on, they just don't know what they are doing.

chevy790 wrote:citreon agency quoted me £150 to clarify what was needed to fix and cost involved-bit steep i thought

Yes, seems about right for main dealer type of price. They will then say 'needs 4 probably injectors - at £500 each' which writes the car off.

Have a look a this LINK for a company to test and repair the delphi injector if the leakoff shows a problem.