talk about bringing up an old thread... after believing i had a fuel pump issue because of this "pump" and "knock" on ignition/prime, i changed the fuel pump... problem still existed, decided to have a look under the back of the car and feel around to realise its the hicas motor. I took the plug out the hicas motor and "pump" and "knock" disappeared. Did anyone of any luck with sorting this out? was it a battery or something else... all signs are pointing to faulty hicas motor as car has developed a shake at higher speeds which i couldn't locate previously but don't want to replace motor for no reason if there is another simple fix
thanks,
Mark
