2008 Ford F150 4.6L intake manifold replacement. I dreaded the job every time I kept thinking about it because it's a lot of R&R work. Didn't take that much pics because I ran into a bunch of snafus particularly the last half of the manifold install.
Manifold removed which begins the horrid part of the job, cleaning and removal of coolant. Coolant down the tube seals and the valley. Cleaning and checking head mating surfaces since I read a few instances of pitting around the coolant passages. Put a dab of RTV around the coolant passages on the head. After the cleanup was done, I also changed the spark plugs figured it was easier with the intake off.
There's your problem, similar failure around on the intake manifold where the plastic gasket grooves started cracking.
Old manifold, beginning the transfer of the EGR, PCV, and fuel rails to the new manifold. Had to secure them using
self-tapping screws. Don't ask how the coils also gets bolted on.
Then a bunch of snafus rushed in as I was buttoning up the Dorman intake manifold.
Snapped a heater hose QD fitting off the firewall.
Thermostat housing leaking plus delayed t-stat opening. The spacer Dorman calls for that goes between the housing and crossover pipe isn't needed and was not sealing the o-ring well. Coolant temps hit 220-225F (via scantool) before the t-stat opened which was too hot for a 195F t-stat. Replaced with a NAPA t-stat and seal minus the housing spacer.
Coolant plug on the crossover pipe was leaking. I have no explanation why the thread sealer failed on the plug when the threaded heater hose barb didn't leak. Resealed the plug with thread tape and everything finally remained dry after the third test drive.
Also replaced the sway bar end links after observing them from the brake job 2 weeks ago.