Cam tower leaks...



...one of the nagging yet overblown 5.7l issues.
My wife's 2018 showed signs of it at 25k miles...I took it in as who wants a 3 year old 25k truck leaking oil right?
Toyota dealer called it "engine sweat"...I shit you not...20+ years in auto repair and first time I've heard that one.
I know what's involved in resealing them and the lack of competence of a large segment of technicians, I let it go vs unknown hands tearing that much apart for "engine sweat".
My 2016 shows barely a light film at rear of right head between oil changes at 75k miles.
Most of them seldom leave a drip on the ground, it's more seepage than anything else.
I hose of the back corner of right cylinder head on my wife's every oil change, it's actually got better over time and never left a drip on the ground or made anything other than damp spot on head and manifold heat shield up to 45k miles now. I figure if it ever gets to hitting the ground I'll just do it myself.
If I remember right Tss is just a cosmetic trim package, doesn't change anything mechanically but can be 2 or 4wd.
One thing to watch with any of the Flex fuel trucks is the flex fuel switching valve on top of fuel tank is prone to leakage due to rust...even on otherwise not very rusty trucks even. Not huge deal, but bit of a pain to replace as you need to drop tank down.
The price doesn't sound bad...same truck/miles in crewmax sr5/trd offload trim likely mid to high 30s.
As always, get it checked out by reputable independent shop before buying if your not Tundra/mechanically savy yourself. Always better to know existing issues before you buy.
Otherwise nothing in particular comes to mind to watch for that year vs any others.
Common issues:
-Wheel bearings front and rear
-flex fuel switching valve
-air injection valves/pumps
-left front axle shaft bearing noise in front diff(kits to replace with solid bushing available reasonably)
-water pump leaks(typically north of 80k...some good 300k)
-cam tower leaks(seldom bad enough to justify expense to fix)
there may be couple im forgetting...but overall not much major...hence the high resale prices