TESTING

See Figures 1 and 2

  1. Remove the sensor. Place the tip of the sensor in a pot of heated oil.
    2.  
  2. Using an ohmmeter, measure the resistance between the two terminals. It should be as follows:
    3.  



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Fig. Fig. 1: Wiring schematic of the EGR temperature sensor circuit



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Fig. Fig. 2: Submerge the sensor tip in oil and measure the resistance of the sensor

  1. If the resistance is not as specified, replace the sensor.
    2.  

REMOVAL & INSTALLATION

  1. With the ignition OFF, unplug the electrical connector to the sensor.
    2.  
  2. Using the proper sized wrench, carefully unscrew the sensor from the engine.
    3.  

To install:
  1. Install the sensor.
    2.  
  2. Plug the electrical connector into the sensor.
    3.  
  3. Refill the coolant to the proper level. Road test the vehicle for proper operation.
    4.