|
There is a fuel pump relay, and they are a fairly common failure. Not sure I have ever heard of the relay or pump being affected by vacuum in the tank. Not sure why you have that going on, would assume a problem with the vent line. One wonders if the tank is being operated under a constant vacuum if the tank is now deformed? I've seen it happen. If there is enough vacuum I would wonder if this would affect fuel delivery eventually. Maybe take the fuel cap off and see if it runs?
Do you hear the pump run when you turn the key to "on"?
Gilly
|