the motor on my son's 2004 Ford pickup, 5.4 liter motor has started making a ticking noise after it's warmed up, 94,000 miles, truck is in excellent condition other than this minor ticking noise. ...
If it is happening when warm, chances are it's a VCT problem not a manifold problem as they tend to reduce in noise when warm. Here's a nice 2553 post thread on what he is in for:
