Cheers I’m sure it’s probably normal but trying to eliminate problems I’d like to know if it is or not!
didn’t realise i hadnt added the rest of it about the hissing sound
but as u say better to get someone else to have a listen for u
sierrafery
Well-Known Member
That hissing sound in the engine bay during the purging sequence is normal, mine and others are doing it, it's a problem when it isnt there cos that means the pump doesnt work well, i can't explain why or what is causing it... though iirc a said in other post that the FPR has nothing to do with poor starting
Many thanks, yes starting isn’t my issue though. Was more concerned there was air in the system but it sounds like that noise is normal
Shifty1962
Well-Known Member
Yes you should hear the fuel flowing through the fpr. Some are louder than others. Take a long handled screwdriver and put it against the fpr with your ear on the handle and you will hear the fuel "squishing" through the regulator. It shows good flow rate from the pump.
Yes I could hear that, it was the air coming out of the hole I couldn’t understand
