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Component Testing

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the fuel temperature sensor.
  2. Measure and record the resistance between the signal terminal 1 and the low reference circuit terminal 2 at the fuel temperature sensor. Compare the value to the Temperature vs. Resistance table. Refer to Temperature Versus Resistance (Fuel Temperature Sensor) or Temperature Versus Resistance (EGT Sensors) or Temperature Versus Resistance (IAT Sensor 1) or Temperature Versus Resistance (ECT Sensors) or Temperature Versus Resistance (IAT Sensor 2) .
    • If the sensor does not closely match through the temperature ranges, replace the fuel temperature sensor.
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