PCV Valve Inspection

Remove PCV valve referring to PCV VALVE REMOVAL AND INSTALLATION
Connect PCV valve to hose and install plug to cylinder head cover hole.
Run engine at idle.
Place your finger over end of PCV valve (1) to check for vacuum.
If there is no vacuum, check for clogged valve. Replace as necessary.

Fig 1: Placing Finger On PCV Valve For Checking Vacuum
Courtesy of SUZUKI OF AMERICA CORP.
After checking vacuum, stop engine and remove PCV valve (1).
Shake valve and listen for rattle of check needle inside the valve. If valve does not rattle, replace PCV valve.

Fig 2: Identifying PCV Valve
Courtesy of SUZUKI OF AMERICA CORP.
After checking, remove plug and install PCV valve referring to PCV VALVE REMOVAL AND INSTALLATION .
Install air cleaner referring to AIR CLEANER ASSEMBLY REMOVAL AND INSTALLATION .