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2000 GMC YUKON XL 2500
6.0L V8 Vortec•4WD•AUTOMATIC•gas
11 active safety recalls on this vehicle — view recalls
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Repairs0Labor492Torque1427Fluid10DTC1767Battery1Maintenance0Recalls11
P0119moderate severityPowertrain

ECT Sensor 1 Circuit Intermittent

on 2000 GMC Yukon XL 2500 6.0L V8 Vortec · 4WD

What this code means

The ECT sensor signal is intermittent.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic temp gauge
  • Fan cycling issues

Common causes

  • Loose connector
  • Damaged wiring
  • Intermittent sensor failure

Diagnostic steps

  1. Wiggle test
  2. Monitor ECT signal
  3. Inspect connector

Repair notes

Repair connector or wiring.

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