I have a 2000 3.0TD. It had a long motor put in it last year. $10000 of work done to it so everything is either new or reconditioned...

Sometimes when I start it cold or hot it will idle a bit rough. All I have to do is tap the accelerator and after that it never misses a beat. It doesn't happen very often but its just annoying!

Any help would be appreciated! Cheers!