Mitsubishi Car 1999-05

Oil Pressure Sensor

Print

Removal & Installation





Click image to see an enlarged view

Fig. Detach the connector from the oil pressure sending unit



Click image to see an enlarged view

Fig. The body of the sending unit has a unique shape . . .



Click image to see an enlarged view

Fig. . . . and the use of an oil pressure sending unit socket greatly aids the removal and installation



Click image to see an enlarged view

Fig. Using the socket and a suitable drive tool, loosen the sending unit . . .



Click image to see an enlarged view

Fig. . . . then remove the sending unit from the oil filter head



Click image to see an enlarged view

Fig. Before installing the sending unit, it is a good idea to place Teflon® tape on the threads

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and support the vehicle safely.
  4.  
  5. Detach the electrical harness connector from the sending unit, then remove the unit from the oil filter head.
  6.  

To install:

  1. Apply a thin bead of sealant to the threaded portion of the oil pressure sending unit. Do not allow sealer to contact the end of the threaded portion of the sending unit.
  2.  
  3. Install the sending unit and tighten to 8 ft. lbs. (12 Nm). Do not overtighten the sending unit.
  4.  
  5. Attach the electrical harness connector to the sending unit.
  6.  
  7. Carefully lower the vehicle, then connect the negative battery cable.
  8.  



Click image to see an enlarged view

Fig. Detach the connector from the oil pressure sending unit



Click image to see an enlarged view

Fig. The body of the sending unit has a unique shape . . .



Click image to see an enlarged view

Fig. . . . and the use of an oil pressure sending unit socket greatly aids the removal and installation



Click image to see an enlarged view

Fig. Using the socket and a suitable drive tool, loosen the sending unit . . .



Click image to see an enlarged view

Fig. . . . then remove the sending unit from the oil filter head



Click image to see an enlarged view

Fig. Before installing the sending unit, it is a good idea to place Teflon® tape on the threads

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and support the vehicle safely.
  4.  
  5. Detach the electrical harness connector from the sending unit, then remove the unit from the oil filter head.
  6.  

To install:

  1. Apply a thin bead of sealant to the threaded portion of the oil pressure sending unit. Do not allow sealer to contact the end of the threaded portion of the sending unit.
  2.  
  3. Install the sending unit and tighten to 8 ft. lbs. (12 Nm). Do not overtighten the sending unit.
  4.  
  5. Attach the electrical harness connector to the sending unit.
  6.  
  7. Carefully lower the vehicle, then connect the negative battery cable.
  8.  

Testing



  1. Remove the electrical harness connector from the sending unit and remove the sending unit from the oil filter head.
  2.  
  3. Connect an ohmmeter between the terminal and the sending unit body cavity and check for conductivity. If there is no conductivity, replace the sending unit.
  4.  
  5. Next, insert a very thin wedge through the oil hole in the end of the sending unit. Push the wedge in slightly and measure resistance. There should be no conductivity.
  6.  
  7. If there is conductivity, even when wedge is pushed, replace the sending unit.
  8.  
  9. If there is no conductivity when a 71 psi pressure is placed through the oil hole, the sending unit is operating properly.
  10.  
  11. Check to see that there is no air pressure leakage through the sending unit. If there is air pressure leakage, the diaphragm is broken and the sending unit will require replacement.
  12.  

  1. Remove the electrical harness connector from the sending unit and remove the sending unit from the oil filter head.
  2.  
  3. Connect an ohmmeter between the terminal and the sending unit body cavity and check for conductivity. If there is no conductivity, replace the sending unit.
  4.  
  5. Next, insert a very thin wedge through the oil hole in the end of the sending unit. Push the wedge in slightly and measure resistance. There should be no conductivity.
  6.  
  7. If there is conductivity, even when wedge is pushed, replace the sending unit.
  8.  
  9. If there is no conductivity when a 71 psi pressure is placed through the oil hole, the sending unit is operating properly.
  10.  
  11. Check to see that there is no air pressure leakage through the sending unit. If there is air pressure leakage, the diaphragm is broken and the sending unit will require replacement.
  12.  

 
label.common.footer.alt.autozoneLogo