Mitsubishi Endeavor 2004-06

Oil Pump


Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions section.
  3. Drain the engine oil.
  5. Remove or disconnect the following:

    Negative battery cable
    Timing belt
    Oil pressure switch
    Oil dipstick
    Oil pans from the engine
    Oil baffle and screen
    Oil pump mounting bolts and the pump from the front of the engine


Note the position of each oil pump case retaining bolts to facilitate installation. The bolts are of different length.

To install:

Click image to see an enlarged view

Fig. Exploded view of the oil pump, oil pan and related components-3.8L engine

  1. Clean the gasket mounting surfaces of the pump and engine block.
  3. Prime the pump by pouring fresh oil into the inlet and turning the rotors or by packing pump with petroleum jelly. Using a new gasket, install the oil pump on the engine and tighten all bolts to 10 ft. lbs. (14 Nm).
  5. Clean out the oil pick-up or replace as required. Replace the oil pick-up gasket ring and install the pick-up to the pump.
  7. Install or connect the following:

    Oil filter and the bracket. Torque the bolts to 17 ft. lbs. (23 Nm).
    Oil baffle and screen. Torque the bolts to 13 ft. lbs. (18 Nm).
    Oil pans
    Oil pressure switch. Torque the switch to 87 inch lbs. (9.8 Nm).
    Timing belt
    Negative ba