Tacoma Extra Cab 4WD L4-2693cc 2.7L DOHC MFI (1997)
Positive Crankcase Ventilation Valve: Testing and Inspection
PCV VALVE INSPECTION
1. REMOVE PCV VALVE
2. INSTALL CLEAN HOSE TO PCV VALVE
3. INSPECT PCV VALVE OPERATION
(a) Blow air into the cylinder head cover side, and check that air passes through easily.
CAUTION: Do not suck air through the valve. Petroleum substances inside the valve are harmful.
(b) Blow air into the air intake chamber side, and check that air passes through with difficulty.
If operation is not as specified, replace the PCV valve.
4. REMOVE CLEAN HOSE FROM PCV VALVE
5. REINSTALL PCV VALVE
