Transfer Fuel Pump - G6-, REMOVING AND INSTALLING, VEHICLES WITH 3.0L (V6)/4.2L (V8) ENGINES FROM 06/2010: Removing
Follow all safety precautions, refer to WORKING ON FUEL SYSTEM .
Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .
- The fuel tank must be completely empty to remove the fuel delivery unit. Procedure to empty the fuel tank, refer to FUEL TANK, DRAINING .
-- Remove the right rear single seat in the second row of seats, refer to Seat Frames .
Risk of injury.
- Wear safety gloves
-- Cut the floor covering along the perforation -arrows- on the right side with a carpet knife -1-.
-- Fold carpet cut-out to side in direction of -arrow-.
-- Remove nuts -1 to 4- and remove right locking flange cover.
-- Disconnect the connector -4- on the right locking flange.
-- If equipped, disconnect the connector -3- on the locking flange.
Place a clean cloth under the separating location to catch any fuel that may leak out.
Very hot fuel can burn your skin.
- In extreme cases, the fuel lines and the fuel itself in vehicles with a common rail engine can be as hot as 100 °C (212 °F) after the engine has been turned off. Let the fuel cool down before opening any line connections otherwise there is a danger of scalding.
- Wear safety gloves
- Wear protective eyewear.
There is a risk of injury because the fuel is under pressure.
- To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.
-- Disconnect fuel lines -1 and 2-. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .
-- Vehicles with parking heater: Disconnect the fuel line to the parking heater. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .
-- Remove locking ring using the Wrench - Fuel Sending UnitT10202.
-- Pull the locking flange -4- out of the fuel tank slightly and remove the seal -1-.
-- Disconnect the connectors -2 and 3- on the bottom of the locking flange.
-- Remove the fuel line -5- from the fuel tank and disconnect it. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .
-- Reach into the opening in the fuel tank and disconnect the auxiliary heater supply line -2- from the fuel delivery unit by pressing the releases.
-- Reach into the fuel tank opening and disconnect the return line -1- from the fuel delivery unit. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .
-- Remove the locking flange.
-- Reach into the fuel tank opening and press the releases -arrows- and disconnect the supply line -1- from the fuel delivery unit.
-- Reach into the fuel tank opening and disconnect the suction jet line -2- to the suction jet pump. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .
-- Reach into the opening in the fuel tank and turn the fuel delivery unit -1- counterclockwise 15° -arrow- to release (bayonet connection).
The fuel delivery unit is illustrated without the fuel tank.
- The notch -3- on the fuel delivery unit then aligns with the retaining ring tab -4-.
-- Remove the fuel line out of the opening in the fuel tank and remove the fuel delivery unit upward.
Be sure there is still some fuel inside the fuel delivery unit.