Hello,

I got high pressure fuel pump leak from the area like in the movie (dumper valve rubber nipple). I wonder if I can some how fix it instead of replacing the whole pump.

 

I haven't had experience with this fuel pump, but I have had with another car. My guess is you cannot adequately repair it for the very reason that it is under high pressure.

 

You can replace just the damper; make sure that you release fuel pressure before before removing the part. To release fuel pressure, you can disable the main fuel pump and run the car until it stalls.

 

That’s what I thought. Can I release the pressure by removing the relay and run an engine until it stalls ? What about getting the pressure back after reinstalling the dumper?

 

Removing the fuel pump relay should allow that unless computer will not allow you to start engine. You will have to find out!

The fuel management system will prime the system, it might take couple tries to start the vehicle and you likely will get a light about engine failing start. You can just clear the error once the system primes itself to the correct pressure.

 

Just open it, it's not much spray and isn't dangerous at all