OBDII Code List
P0186 2000 FORD F150

P0186 2000 FORD F150 - Engine Fuel Temperature Sensor B Circuit Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty Fuel Temperature Sensor
  • Fuel Temperature Sensor harness is open or shorted
  • Fuel Temperature Sensor circuit poor electrical connection

Tech notes

Replace Fuel Temperature Sensor.
The comprehensive component monitor (CCM) monitors the EFT Temperature for acceptable operating temperature. If during testing voltage were to fall below or exceed a calibrated limit, a calibrated amount of time the test will fail.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0186 2000 Ford F150 Description

The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
OBDII Code P0186 2000 Ford F150 - Engine Fuel Temperature Sensor B Circuit Range/Performance  - Engine-Codes.com

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