Remove the intake manifold chamber.
Disconnect the four ignition coil connectors (A).

Remove the harness holder (B) and the breather hose (C).
Remove the cylinder head cover.

Tailgate Dynamic Damper Replacement
NOTE:
Put on gloves to protect your hands.
Take care not to scratch the tailgate or the related parts.
Remove the tailgate lower trim panal.
Remove the bolts, ...
Reassembly
Install the upper spring seat (A) to the upper spring seat clip (B).
NOTE: Make sure to securely set the upper spring seat to the hook (C) on
the spring seat clip.
...
Breather Line and Suction Line Inspection (Page-2)
Attach the fuel pressure gauge attachment. Then connect the vacuum pump/gauge
(A) to the suction line (B), and apply vacuum to the line:
If the line holds vacuum, check for a blocka ...