Clicking sound when nitrous is activated

[Hammer]

yesterday I noticed that when the window switch kicks in a 3,000 rpm I hear this rapid clicking noise. I never noticed it before.

I would assume the window switch might click once when its acitvated and another time when is shuts down, but the clicking noise doesnt sound right.

Thanks
Jim

[Hi-psi]

Sounds like you may have a loose connection or something. You really should only hear one click when the solenoid opens.

[SPD DMN]

Agreed.

Also something to check is your fuel pressure safety switch (if so equipped). It may be cycling the system on and off if it is set too close to the normal pressure. If the switch is installed right next to the selenoid, it may be sensing a pressure drop upon selenoid activation.