I have a ticking in the engine that I can hear from 900 to 1100 rpm. There needs to be weight from towing or lightly power brake to hear this ticking. I took it to a ford dealer and they said its the injectors...i don't believe them, its kinda loud. Does anyone know what it is???

 

Look around the exhaust manifolds for broken studs, manifold crack etc.

 

you can also go through and tighten up your exaust clamps

 

Also its a 2004 f150 5.4

 

i have the same kinda ticking you mention. they told me it was the p/s pump and said that it is normal