Hi all, got a bit of a head scratcher so thought I'd ask if anyone's encountered any issues with theirs? I'm getting air in my fuel system on my 307 2.0 HDI 90 (2003). I've replaced the leak-off lines and the injector jumper pipe for injector 2 (this was the only damp one of the 4).
It appears the air is getting in 'pre fuel pump' as I can see the bubbles in the fuel supply pipe from the fuel filter.
It's also worth noting I have just replaced the fuel filter during a service yesterday (this problem existed before though) so I'm sure I've not fitted it incorrectly.
Is it likely to be the prime pump? (The squidgy black hand prime pump)?
Any ideas would be greatly received before I plough in with new parts everywhere!