Hyundai Tiburon (2003 year). Manual — part 44

Install the positive crankcase ventilation valve and tighten to the specified torque.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Crankcase Emission Control
System > Positive Crankcase Ventilation (PCV) Valve > Repair procedures, TIBURON(GK) > 2003 > G
2.7 V6 DOHC > Emission Control System > Crankcase Emission Control System > Positive Crankcase
Ventilation (PCV) Valve > Repair procedures

REMOVAL

1. Disconnect the ventilation hose from the positive crankcase ventilation(PCV) valve. Remove the PCV valve

from the rocker cover and reconnect it to the ventilation hose.

2. Run the engine at idle and put a finger on the open end of the PCV valve and make sure that intake manifold

vacuum is felt.

The plunger inside the PCV valve will move back and forth.

3. If vacuum is not felt, clean the PCV valve and ventilation hose in cleaning solvent, or replace if necessary.

INSTALLATION

Tightening torque PCV valve:
8~12 Nm (80~120 kg·cm, 6~8 lb·ft)

INSPECTION

1. Remove the positive crankcase ventilation valve.

2. Insert a thin stick into the positive crankcase ventilation valve from the threaded side to check that the plunger

moves.

3. If the plunger does not move, the positive crankcase ventilation valve is clogged. Clean or replace it.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Evaporative Emission Control System >
Flow Diagram, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Evaporative Emission
Control System > Flow Diagram

COMPONENTS

On-Board Refueling Vapor Recovery(ORVR) system is properly designed to prevent the fuel tank vapor(HC) emission
during refueling at the gas station. This system consists of fill vent valve(ORVR), fuel shut-off valve, fuel cut valve(roll
over), two way valve(pressure/vacuum relief), fuel liquid/vapor separator which is installed beside the filler pipe, charcoal
canister which is mounted under the rear floor LH side member with protector, tubes and miscellaneous connections. While
refueling, the flow and column of the refueling draws the ambient air into the filler pipe so as not to emit fuel vapor in the
air. The fuel vapor in the tank is then forced to flow into the canister via the fill vent valve and the fuel liquid/vapor separator
which isolates liquid fuel ingredient and transfers the pure vapor to the carbon canister. While the engine is operating, the
trapped vapor emission in the canister is drawn and fed by the intake manifold vacuum into the engine combustion
chamber. According to this purge process, the carbon canister is purged and recovers its absorbing capability.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Evaporative Emission Control System >
Description and Operation, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Evaporative
Emission Control System > Description and Operation

DESCRIPTION

For monitor, there are a CCV and an air filter as the illustration.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control System > Evaporative Emission Control
System > Canister > Repair procedures, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Emission Control
System > Evaporative Emission Control System > Canister > Repair procedures

INSPECTION

1. Look for loose connections, sharp bends or damage to the fuel vapor lines.

2. Look for distortion, cracks or fuel leakage.

3. After removing the EVAP Canister, inspect for cracks or damage.

CHECK OF CANISTER CLOSE VALVE OPERATING

1. Connect the CCV pins to a wire as shown.

2. At idle, disconnect the CCV connector.

3. Inspect that CCV is close when attaching the wire to(-) of battery.

4. Inspect that CCV is open when detaching the wire from(-) of battery.

In this case, if you use a very thin paper and attach it to hose to CCV, you can check easy the CCV
condition.

(1) If the paper is absorbed into or out, CCV is open.

(2) If not, CCV is close.