Hi there,

Thank you for reading this post

A small line connecting the fuel line to the fuel pressure regulator needs to be removed and replaced, as it leaks profusely when the car is on, but I know I need to relieve pressure in the fuel line before taking it off.

Is it safe to turn on the car and then remove the fuel pump relay to kill power to the pumps and relieve pressure in the line? Will removing the fuel pump relay cause a spark that will ignite gas fumes?

Thanks, and any all advice is appreciated

- JH

 

If you are talking about the rubber return hose clamped with a hose clamp on the exit of the fuel pressure regulator (on the intake manifold) to the metal pipe near the firewall - There is no pressure there when the engine is turned off. It is safe to remove and replace/shorten that hose if needed. That hose goes directly back to the gas tank, recirculating the unneeded/unused fuel pumped up to the injector rail. .

If you are talking about the vacuum line on the front of the regulator that connects to the intake manifold - if gas is there you need a new pressure regulator, the diaphragm is broken and it is leaking.

 

So I think it’s the first hose you mentioned. It’s connected to a line on the firewall, I think. Thank you so much for your reply.

 

Came off safe and sound! Thanks