05-13-2019, 07:36 AM
This is a long shot: My 1995 454 with fuel injection would not hold rpms and eventually cut out mysteriously - mechanic first thought electrical and then fuel. After trying many fixes - and throwing a ridiculous amount of money at the problem - it turned out to be a defective anti-siphon valve in the fuel tank that prevented fuel from being drawn from the tank.


![[-]](https://www.tiaraownersclub.com/forum/images/netpen-pro/collapse.png)