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2018 LINCOLN MKX

2.7L EcoBoost V6AWDAUTOMATICgasturbo
5 active safety recalls on this vehicle — view recalls
Repairs0Labor1190Torque9534Fluid15DTC1932Battery0Maintenance0Recalls5
P1117low severityPowertrain

ECT Sensor Intermittent

on 2018 Lincoln MKX 2.7L EcoBoost V6 · AWD

What this code means

The Engine Coolant Temperature sensor signal is intermittent or erratic. The PCM detects signal dropouts or fluctuations from the ECT sensor.

Symptoms

  • Check Engine Light
  • Erratic temperature gauge
  • Fan cycling erratically
  • Poor fuel economy

Common causes

  • Loose ECT sensor connector
  • Corroded wiring
  • Faulty ECT sensor
  • Damaged connector pins

Diagnostic steps

  1. Inspect ECT sensor connector
  2. Wiggle test wiring while monitoring reading
  3. Test sensor resistance
  4. Check wiring continuity

Repair notes

Repair connector or wiring. Replace ECT sensor if faulty.

Other Powertrain codes on this vehicle

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