2000 Chrysler LHSFACTORY OEM SERVICE PROCEDURE

Upstream O2S Monitor

Perform the following:

  • Ensure engine is at normal operating temperature, above 170Β°F.
  • Operate the vehicle for a period of time, more than 2 minutes, at a speed above 25 MPH.
  • Bring the vehicle to a complete stop, with foot on the brake and transaxle in gear (A/T) or neutral (M/T).
The monitor should run while vehicle is stopped with the engine idling. Wait for a few minutes to allow the monitor to complete before turning off engine.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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