robocop199

iTrader: (1)

I installed a walbro fuel pump in my 99 maxima w/V2 SC today and everything went fine, it started right up after with no leaks or anything. I went to get gas after and had my tank filled and now the pump is really noisy, to the point where i can hear it clearly on the outside of the car. I have no clue why it would be this noisy, i havent unhooked the stillen aux. fuel pump and switch yet, would that be the problem? also if i cut the yellow wire that runs from the hobbs switch through the firewall will that disable the aux. fuel pump until i get a chance to remove everything? thanks for the help

robocop199

iTrader: (1)

anyone have any idea why the pump is so loud? is it because the aux. pump is still connected? please help

WizzaMax

iTrader: (9)

What is your fuel pressure and why are you combining the Walbro with the Aux fuel pump?

you need to determine if you require additional pressure from the Aux inline...or just run the Walbro to the FMU an dleave the Aux unit off.

from the posts I read on the fuel pump, it is noisy but good to have with stock fuel pump.


just my two cents...good luck

robocop199

iTrader: (1)

thanks for the reply wizzamax, the pump is actually starting to quiet down a lot. Before it did, it was louder than the V2. And I have yet to dissconnect the aux. fuel pump, which is my next question. Does anyone have any detailed instructions on how to remove the aux. pump?
any info would be great, thanks

JAY25

iTrader: (38)

look at your aux pump, you will see a hose go into the pump and the other hose exit the aux pump which connects to the fuel rail. Disconnect the hose that connects into the fuel rail and connect the one that goes into the aux pump to the fuel rail

robocop199

iTrader: (1)

thanks jay, i'll try that tonight

RBa

iTrader: (2)

It's still gonna be noisy..

robocop199

iTrader: (1)

haha, yeah i know, no more lag though. it was really loud when i first put it in, its starting to quiet down though

Chunger

iTrader: (1)

I guess it varies... mine is just as quiet as my old stock one... I got lucky I guess.

robocop199

iTrader: (1)

great write up and pictures chunger, i couldnt have done the install without it

Stephen Max

iTrader: (59)

Same here.