2003 Ford F150 4 2L Ford Intake Manifold Gasket replacement

This video is a phase-by-phase type of video, since I didn't have time to video every single thing I did.
What was replaced:
Upper and Lower Intake Manifold Gaskets. They can be bought as a full set or separately. Iac and Throttle Body gaskets do not come with this set.
Intake Isolator bolts.
IMRC Bushings.
(IAC) Idle Air Control Solenoid/Motor Gasket (Figure 8 shape).
Throttle Body Gasket.
What happened: I had OBDII codes for P0171 (Bank 1 System Too Lean) and P0174 (Bank 2 System Too Lean). These codes indicate that a vacuum leak has occurred somewhere on the intake side and the O2 sensors on the exhaust side are "sensing" too much air and therefore an imbalance according to the program. The problem is, besides the fact that you will fail emissions, is that the computer will max out the amount of fuel for the injectors to either put into the intake runner and therefore run too rich or put more fuel than necessary causing bad fuel mileage. I know, doesn't make sense to have a "too lean code" and have an engine run too rich.
This solution did repair the problem.

Видео 2003 Ford F150 4 2L Ford Intake Manifold Gasket replacement канала Joshua Robertson