Tricky Problem
Discussion
Went to see the brothers 05 Plate TDI shogun on Sunday.
It's been to THREE garages, none of which have been able to diagnose the fault including the main dealer (who frankly royally f
k things up each time they touch it (4 trips to fix a non-working fuel gauge))..
The symptoms are:
1. Lots of white (diesel) smoke on start up and this remains for several minutes across the rev range - so over fuelling or faulty glow plug? - This eventually stops indicating poss faulty glow plug.
2. Will not rev above 3K regarless of load i.e. no load.
3. I can see or hear any hose leaks.
This has been to several garages and is now with the fourth.
It does have high miles - 180k, and had a head swap a year ago from over heating.
Any ideas or recommendations on places to take it?
It's been to THREE garages, none of which have been able to diagnose the fault including the main dealer (who frankly royally f
k things up each time they touch it (4 trips to fix a non-working fuel gauge))..The symptoms are:
1. Lots of white (diesel) smoke on start up and this remains for several minutes across the rev range - so over fuelling or faulty glow plug? - This eventually stops indicating poss faulty glow plug.
2. Will not rev above 3K regarless of load i.e. no load.
3. I can see or hear any hose leaks.
This has been to several garages and is now with the fourth.
It does have high miles - 180k, and had a head swap a year ago from over heating.
Any ideas or recommendations on places to take it?
white smoke in a diseasel is usually steam- either coming from head gasket, cracked cylinder, or possibly the turbo is water cooled and leaking from the water jacket into the turbo housing.
Would suggest lack of revving is a compression problem.
can you find someone to test the coolant for exhaust gases?
Would suggest lack of revving is a compression problem.
can you find someone to test the coolant for exhaust gases?
seagrey said:
Sounds like possible injector/s failure.
Ive had a few of these where the tip of the injector cracks between the holes,then the high pressure diesel does its work and pops the top clean off.
I'd agree with that, a duff injector that doesn't atomise will produce lots of white smoke, especially with a cold engine. Another possibility would be low fuel pressure, but this would normally flag a fault code.Ive had a few of these where the tip of the injector cracks between the holes,then the high pressure diesel does its work and pops the top clean off.
Mr2Mike said:
I'd agree with that, a duff injector that doesn't atomise will produce lots of white smoke, especially with a cold engine. Another possibility would be low fuel pressure, but this would normally flag a fault code.
Thanks guys, as mentioned it's no tsteam. - It currently having the pump replaced (at not-insignifcant cost)...Will wait and see what that produces tomorrow...Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff