First post here...
been searching previous threads to see if I can find any info but no luck...
I recently purchased a Vectra 1.9 cdti, 2008 with 90k on the clocks.. and had the DMF replaced under warranty from the garage, had a few issues with things not clipped back in when I got it back but not the end of the world. Have also had the cambelt and water pump replaced by the local vauxhall garage as they had a deal on at the time.
Now, since getting teh car back from all of the above, it has been making a knocking noise for a few seconds on start up from cold... having previously owned a Rover 420 sldi, I am use to teh tractor sounds of a diesel engine.. but this is a rather pronounced knocking noise which after about 10 secons or so dies off to normal cold running noises.
I am at a loss as to what this could be, it appears to be from the cambelt side of the engine, possibly to the front but am not certain of exact location, as by the time I start car and get out etc theres not long of the noise left to locate it!
Usual suspects would be water pump.. but this has already been changed, unless the Vx gaage has pulled a fast one?
Has anyone else experienced this noise? Looking from past car service history, injectors have been replaced previously as well.