Remove the harness holder (A).

Check the PCV valve (A), the hoses (B), the pipe (C), and the connections for leaks or restrictions.

At idle, make sure there is a clicking sound from the PCV valve when the hose between the PCV valve and the intake manifold is lightly pinched (A) with your fingers or pliers.
If there is no clicking sound, check the PCV valve washer for cracks or damage. If the washer is OK, replace the PCV valve and recheck.

AM/FM Radio Reception
Radio Frequencies
The radio can receive the complete AM and FM bands.
Those bands cover these frequencies:
AM band: 530 to 1,710 kHz
FM band: 87.7 to 107.9 MHz
Radio stations on the AM band are a ...
Engine Oil Replacement
Allow the engine to reach operating temperature (fan comes on at least
twice).
Remove the drain bolt (A), and drain the engine oil.
Reinstall the drain bolt with a ...
Guidance Screen
...