P0137 on Lincoln Navigator
Factory diagnostic protocol and troubleshooting wire for fault code P0137 specifically for the Lincoln Navigator (2020–2026, 3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque)).
1. Symptoms of P0137 on Lincoln Navigator
When the Engine Control Module (ECM/PCM) on your Lincoln Navigator (3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque)) logs fault code P0137, drivers commonly observe:
2. Most Likely Causes on Lincoln Navigator
Historical warranty claims and technical repair bulletins for Lincoln Navigator point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Lincoln Navigator
Listen for exhaust ticking or black soot around flex pipe, flanges, and sensor bungs before the catalytic converter. on the Lincoln Navigator equipped with 3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque).
Monitor B1S2 voltage. Snap the throttle to enrich mixture; voltage should briefly spike above 0.8V. If it remains 0.0V–0.1V, sensor is defective or shorted. on the Lincoln Navigator equipped with 3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque).
Unplug harness, remove old sensor with 7/8 socket, install replacement sensor and plug firmly. on the Lincoln Navigator equipped with 3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque).
Clear DTCs and verify B1S2 holds steady between 0.45V and 0.75V during steady highway cruising. on the Lincoln Navigator equipped with 3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque).
Equipment for Diagnosing Lincoln Navigator (P0137)
Lincoln Navigator OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Lincoln Navigator.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Lincoln Navigator
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Lincoln Navigator:
4. Lincoln Navigator P0137 FAQs
What causes code P0137 to trigger on a Lincoln Navigator?
On the Lincoln Navigator (3.5L Twin-Turbo EcoBoost V6 (440HP / 510 lb-ft torque)), P0137 is most frequently caused by Exhaust leak upstream of or directly at the Sensor 2 bung letting in fresh air or Faulty downstream oxygen sensor.
Where is the OBD-II port located on my Lincoln Navigator?
On the Lincoln Navigator, the 16-pin DLC diagnostic connector is located Under driver side dashboard kick panel. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Lincoln Navigator with code P0137?
Yes. Vehicle is fully drivable, but Check Engine Light will remain illuminated. Given that P0137 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.