Kylan Walker

I tried running it without the cap on. Still does the same thing. Ordered a new fuel pump as the old one was rusted really bad. Decided to bite the bullet and just buy a new one.

I've got a 2018 defender HD10. It will run great for 20- 30 min then it will lose power and start cutting out. When I pull the fuel cap there's always a hissing sound. Like vacuum or pressure.