Potluckslammy
Member
- 55
- 75
- 18
- Location
- Umpire, AR
A3, "ticking" sound coming from tank when running. Don't think my other one makes the same noise. Would say it's the fuel pump, but I don't yet understand how the fuel system works. I know the injectors are mechanical...so the in-tank pump and aux lift pump arrangement I'm familiar with don't seem to be necessary. If there is an in-tank pump, it doesn't run by powering the electrical system...so is there a cut-out that only lets it run when the engine is running? Apologies...I can come to an understanding of the fuel system with further reading...and, I know, the TM's! But I would, please, like some advice as to what/why it's making this noise. It's concerning!