Can someone please explain to me where the vacuum hoses are in a 5.4? Pics would be great too haha.

 

What year?

2WD or 4x4?

 

Sorry probably should have been a little more specific. 2004, 2WD. (Not heritage)

 

Ah I cannot find my Laptop. Tried looking for it again tonight. (mini dell jobby) It has all my PDF stuff on it.

Anyways why do you need information / pictures ? What's the problem?

EDIT: IIRC there's two Vacuum lines on the back of the intake manifold either side of the charge motion controller actuator. The Left (Sitting in cab) is the brake booster, it runs to a steel manifold and the other lines on the right is a split OEM hard'ish line, it feeds the 4X4 and the other runs to the FRPS.

 

Well I've been having some pretty tale-tale signs of a leak. My RPMs have been fluctuating a lot when idle, they're running abnormally low(just above 500 at idle and only around 1000 at cruising speed, even stalled the other day), been running rough, and I've been having sub-par fuel economy(used to get 12.4, now I'm only getting 11.2, even with a 2-week old throttle body) So I turned on the truck and stuck my head under the hood and I'm pretty sure I heard a loud hissing sound. I'll look for what you've described, but if it's not too much trouble, could you snap a pic of one end of the hose? I just don't want to go snatching off fuel lines haha.

Edit: That's of course assuming you have a 5.4L 3V