Thread: Air in fuel line got me stumped

Originally Posted by Fattima

My 300TDi is having issues where it will get fuel starvation on hard acceleration or going up a long hill.
Setup is as follows

• Running on blended veg oil
• Facet style lift pump fitted near tank
• clear fuel pre filter in engine bay

So far I have

• replaced fuel line from tank to sedimentor
• bypassed sedimentor
• changed pumps
• changed filters

As you can see there is a steady flow of air bubbles, the clear filter fills up much better now but still a steady stream of air coming into the system. Any ideas, got me stumped. Video at link below
https://photos.app.goo.gl/vT4KHw7WkNSLYyxD9

For state of mind replace the line from sedimentor to the lift pump. I had fuel leaks every where and just bought 4 or 5 metres of fuel line.

Cheers,
Tom.

sealing goop on the suction side of the facet pump strainer has failed and its drawing air in through the threads.

Cheers guys, will check it out.