I have a 2003 Golf 1.9 TDI pd 100 with 120,000 on the clock.
When I have the engine running at idle , after a about 30sec to a minute, it starts to shake a little, like as if an injector is not getting enough fuel. It like runs smooth then after each 30 seconds or so it starts doing it again. If I increase the revs slightly it's ok and the car runs ok. Anyone know what it could be?