thorbuilt

when i turn the key on with out starting i here my fuel pump activate and a ticking noise from the engine compartment, then the fuel pumps shuts down after about 30 seconds which seems long to me?, then i hear a fast pace ticking noise for about another minute? Any idea's you can see my mods in my sig? any help would be great.

CReed

I have heard this too on my 03 and never could find out what it was but was told several times it was normal.

SmithTow

Thats funny that I saw this thread because I noticed my truck doing the same thing today.

SAVOY1964

I have also heard this I thought it was number 1 injector cycling. Was not the pump makeing the noise and don't think the grid heater makes any noise eather.

CG98x

As far as I know it is the injectors cycling.

WVKrawler

I have the same thing with my 03 SO. I read on another site that it is a sign that your battery stregnth is low???? I don't know if this is true or not. But...I notice the only time my truck does it is when I leave my cell phone charging in there all night and go to start it in the morning. who knows, I have had my truck for almost a year and put close to 18K on it and I find new little quirks all the time...still runs like a champ and better than my old 2000 powerstroke

staarma

#1 and 5 injectors purging air from the rail before startup. These things idle at about 7500 PSI so upon shutdown the rail bleeds pressure so that pressure doesn't sit in there the whole time. At least that's what I understand.

thorbuilt

this is nut's i have heard so many things.... but one common thread seems to be smarty related does anyone have this happen pre or post smarty?

GEN3TRQMONSTER

I got TICKS also lol ewwwwww.