Nissan Maxima 1993-1998 Repair Guide

Oil Pressure Switch

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The oil pressure switch is located underneath the front of the engine, next the to oil filter. This switch sends a signal to the oil light on the instrument cluster, warning of low oil pressure.

TESTING



See Figures 1 and 2


CAUTION
During this procedure, the engine will running; use extreme caution. Keep clear of moving parts.



Click image to see an enlarged view

Fig. Fig. 1: Oil pressure switch location-VE30DE engines



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Fig. Fig. 2: Using an ohmmeter to check the oil pressure switch

the engine should be at normal operating temperature before performing this procedure.

  1. Turn off the engine.
  2.  
  3. Unplug the oil pressure switch connector.
  4.  
  5. Using an ohmmeter, check the continuity between the terminal and ground; there should be continuity.
  6.  
  7. Start the engine and let it idle. Check the continuity between the terminal and ground; there should not be continuity. If not within specifications, replace the switch.
  8.  

REMOVAL & INSTALLATION



See Figures 3 and 4

If the engine is hot, allow it to cool before performing this procedure.

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Disconnect the electrical connector from the oil pressure switch.
  6.  



Click image to see an enlarged view

Fig. Fig. 3: Location of the oil pressure switch; the alternator is removed for clarity

  1. Remove the oil pressure switch from the engine.
  2.  

To install:
  1. Using proper sealant, lubricate the oil pressure switch threads.
  2.  



Click image to see an enlarged view

Fig. Fig. 4: Use thread sealer on the switch to prevent leaks. Be careful not to overtighten the switch

  1. Install the oil pressure switch and torque it to 9-12 ft. lbs. (13-17 Nm).
  2.  
  3. Connect the electrical connector to the oil pressure switch.
  4.  
  5. Connect the negative battery cable.
  6.  

 
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