2004 Ford F-150 has been parked 2015. We have had the p0012 code that would have to be swapped out VCT solenoid. We did find far too much sludge under the valve cover when we did the solenoid swap. After that since we weren't using the truck we gave it some Marvel Mystery Oil and ran it periodically just to keep the fluids moving.
Fast forward to 2 weeks ago when went out and ran the truck while we were replacing the flooded out headlight assemblies and upgrading to LED turn signals and stop brake tail lights. The engine got up to operating temperature can he persistently annoying tick that is the signature of the 5.4 liter 3 valve Ford V8 smoothed right out two the low almost sewing machine tick that it's had since we purchased the truck in 2006.
The code has gone away and has yet to return for the last 2 weeks. We will be changing the oil again and following up with some other maintenance issues such as a cooling system flush and fill before we get it inspected and get the new registration tags for it. At this point it honestly looks like vct system is working as it is supposed to.
I am not saying but it is fixed for sure however it does look that way for the time being I need to have some time I'm with it before I can be sure and before I can do that I need to stop the exhaust leak from where the new MagnaFlow cats Are Leaking.
We also upgrade the exhaust most likely with the Summit Racing Cat-Back system hand two and a half by two and a half 3 inch Y pipe dumping the exhaust in the stop location. We may or may not opt to swap in a MagnaFlow single in single out Muffler at that time as well. The stock exhaust is 13 years old now and could really use to be replaced.
We will keep you updated but it looks like the Lumber wagon will be hitting the road again.