i just started getting the same problem. sputtered for about a week and a half, thgen suddediklly it just wouldnt go. go up any kind of a incline and id loose speed. get to top and going down the hill it would gain speed slowilly. then took off one night and now it barilly idels. had timming belt replaced 2 mo ago. new plugs wires,m coil pack 6 mo ago. could it be fuel pump or filter. some one said the cataclac converter could be clogged also. could that be possible?
Oct 08, 2009 Rating
Pump by: Krutch
Thanks sir!
Seems the pressure is there when the car has been running for a short while, then it drops. Filled the tank and the problem goes away, not 100% but the car was able to cream a Polo TDi badly last night, only slight hesistation at high RPM.
I'm thinking it's the fuel pump - with what you said and a few others have suggested. With a full tank the pump is completely submerged and stays cool and works, under 3/4 tank it starts to warm up with less fuel on it and then doesn't work.
I will be replacing the pump with a Walbro pump in the next few days, I hope that sorts the problem, but I will update as to what happens.
