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Exhaust Emissions System - Catalytic Converters: Maintenance

  1. Every 25, 000 miles, the "Replace Catalyst" warning light will come on. At this time, the catalytic converter should be replaced and the warning light activator switch should be reset.
  2. Check "Slow Down" indicator light and catalytic converter thermocouple for proper operation by turning ignition switch to "MAR". "Slow Down" light must come on and go out after 2-5 seconds. If system does not function as described, check terminal connections and change parts as necessary.