Dealer told me two years ago it was third brake light.
F150 third brake light leak repair.
You ll know if this happens because you start to see water accumulating above the rear passenger seat on the headliner.
Gets headliner all wet.
Car complaints car problems and defect.
2004 2008 ford f150 3rd third brake light lamp high mount updated design new genuine duration.
This guide is for a 2009 2014 f 150 but the same concept applies for.
Changed light twice and two years later still not fixed.
The 2010 ford f 150 has 12 problems reported for 3rd brake light cargo light leaks.
This is a very common problem there is even a ford tsb technical service bulletin issued yet unless you have under 36 000 miles ford will not repair and the leak causes damages to roof liner seats and carpet.
Brake light was dry when cover was removed i now believe it is the small black trim piece that is riveted to the roof above rear window.
3m double sided tape razor blade cutting tool rubbing alcohol hand towel water source for water leak testing.
The fix is simple and will only take about 20 minutes.
Lift the housing away and twist the light sockets out of the brake light housing.
Wipe down the brake light assembly with rubbing alcohol where the old gasket was removed.
Start by removing the two screws holding the brake light to the cab.
It also made my f 150 s third brake light leak water into the roof of the cab.
Average repair cost is 50 at 46 200 miles.
The 3rd brake light on the back of the cab is leaking water on newer ford trucks knows this and should do a recall to fix all and make repeat customers smile for once.
Fortunately i caught this problem early and it is a fairly easy fix.
Sealed light completely and it rained on 11 2 2015 headliner still got wet.
Examine the foam rubber gasket where you saw bubbles and you may see why it was leaking.