this vehicle will not start easily if it is parked on a slope with the front of the car facing upwards?...... i have been told it could be injector seals, fuel return pipes, fuel filter housing?...can anyone make an accurate diagnosis of this problem?.. it has been sugested that a one way valve should be fitted in the fuel line?..... if so where can i get such a valve?...... also it makes no difference if the tank is full or nearly empty....

j roberts, October 2006

hi a possible anser to your question..if the lift pump is worn or durty it can drian back you can get in line filter which is one way put it befor the maim filter but it is a wise to also change all filters good luck bill..

billjones45@ntlworld.com, December 2007

Poor starting also, takes a few minutes before it runs and the smoke would choke you. My drive is on a slope and I have tried it both ways and on the flat with no change. Going to try the bleed off pipes then maybe the Inj seals.

Andy T 2003 Vectra 20lt DTI Club, October 2007