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Home >> Volvo >> 2000 >> S80 T6 L6-2.8L Turbo VIN 90 B6284T >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Positive Crankcase Ventilation >> Service and Repair
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Positive Crankcase Ventilation: Service and Repair






Crankcase ventilation and electronic throttle module (ETM), cleaning

Note! Some variation in the illustrations may occur, but the essential information is always correct.

Removing





Remove:
- the battery negative cable. Refer to: Battery, disconnecting Battery Disconnecting
- the inlet hose between the air cleaner housing and the front panel
- the charge air hose from the charge air pipe
- the dipstick tube
The banjo nipple is located on the underneath of the intake manifold behind the mounting for the dip stick pipe.




Remove the 2 x connectors from the charge air hose between the charge air cooler (CAC) and the throttle body (TB).

Remove:
- the hose clamp
- the by-pass valve from the charge air hose.




Remove the hose clamp for the charge air pipe on the throttle body and the charge air cooler (CAC).
Remove the charge air pipe from the throttle body and the charge air cooler (CAC).




Remove the 4 x screws for the throttle body.

Cleaning

Note! For tightening torques, see: Tightening torque Tightening Torque




Place paper between the fan shroud and the engine block.
Place the throttle body on the paper.




Clean the throttle body (TB) using cleaning agent 1161826 and apply using a brush or similar.
Ensure that all deposits are removed from the surfaces marked in the illustration.

Note! Do not use compressed air when cleaning the throttle body.




Carefully wipe clean the inside of the air channel on both sides of the throttle disc. Also wipe clean the edge of the throttle disc.

Cleaning crankcase ventilation




Remove the pipe screws from intake manifold.
Disconnect the hose (1) from the nipple.
Remove the oil filler cap.
Blow the hose (1) clean with compressed air.
Clean the hose with an electrical cable - 2.0 mm

Note! If the hose is clogged, use a welding rod (max - 2.0 mm , approximately 250 mm long) to clean the hose.

Clean the nipple (2) using a - 2.0 mm drill or a welding rod.

Install:
- the hose on the nipple
- the pipe screws with new gaskets
- the oil filler cap.
Raise the vehicle.
Remove the splashguard under the engine.
Tighten the pipe screws.
Install the splashguard under the engine.
Lower the vehicle.

Installing

Installing the throttle body





Install:
- the throttle body. Use a new gasket
- the 4 x screws to contact.

Raise the car.
Remove the splashguard under the engine.
Tighten the 4 x screws for the throttle body.
Lower the car.

Installing the charge air pipe




Install the charge air pipe to the throttle body and charge air cooler.
Tighten the hose clamp for the charge air pipe on the throttle body.





Install:
- both the connectors from the charge air hose between the charge air cooler (CAC) and the throttle body.
- the by-pass valve to the charge air hose using a clamp.





Install:
- the dipstick tube
- the charge air hose to the charge air pipe
- the inlet hose between the air cleaner (ACL) housing and the front panel.

Connect the negative battery lead. Refer to: Battery, disconnecting Battery Disconnecting

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