PCV Valve Inspection

Remove the intake manifold cover (see step 1 on REMOVAL ).
Check the PCV valve (A), hoses (B), and connections for leaks or restrictions.

Fig 1: Checking PCV Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.
At idle, listen to the PCV valve (A) with a stethoscope as you lightly pinch the PCV hose (B) with your fingers or pliers several times. Each time the hose is pinched, the valve should click.
If there is no clicking sound, check the PCV valve grommet for cracks or damage. If the grommet is OK, replace the PCV valve and recheck.

Fig 2: Pinching PCV Hose
Courtesy of AMERICAN HONDA MOTOR CO., INC.