Hi James With a full tank, quickly whip off the pickup altogether - just let the pump draw freely. This will tell you immediately if it's a pickup problem - which is what my money's on. Are you using a pickup filter? Have you tried that in-line jobby I gave you (which reminds me, you owe me six quid :-) I had loads of pickup problems till I binned the pickup filter I got from Wingray and used the in-line one. I still use the original pickup hose - I'll probably regret it when the weather gets warmer!!! For general interest, the in-line filter I'm using has only 1/4" ports - the larger bore of the pickup hose seems to be overkill. Martin #1458 jamesrguk wrote: > Hi all, > > I have just had various bits of work done on my car at the weekend > and everything was fine on the drive home from the Diesel Centre in > Kent which was about 100mile trip. > > However today I started and drove the car and it seems to stammer & > vibrate whenever I plant my foot on the floor. At first I thought it > must be fuel starvation but I have a full tank of petrol, new fuel > pump, copper pickup pipe and a new fuel filter, so what can it be? > > Any ideas > > Regards > > James Rg > England