1998 Mercury Villager Owner Guide 1st Printing - Page 319

Maintenance and Care Do not drive your vehicle if it does not operate properly. See your dealer if the engine runs on for more than five seconds after you shut it off or if it misfires, surges, stalls, or backfires. Information about your vehicle's emissions control system is on the Vehicle Emission Control Information decal located on or near the engine. This decal identifies engine displacement and gives some tune-up specifications. How to Prepare Your Vehicle for Inspection/Maintenance (I/M) Testing In some localities it may be a legal requirement to pass an I/M test of the on-board diagnostic (OBD-II) system. If your ''Service Engine Soon'' light is on, reference the applicable light description in the Warning Light and Gauges section of your owners guide. Your vehicle may not pass the I/M test with the ''Service Engine Soon'' light on. If the vehicles powertrain system or battery has just been serviced, the OBD-II system is reset to a ''not ready for I/M test'' condition. To ready the OBD-II system for I/M testing, a minimum of 30 minutes of city and highway driving is necessary as described below: Ⅵ First, at least ten minutes of driving on an expressway or highway. Ⅵ Next, at least twenty minutes of driving in stop-and-go, city-type driving with at least four idle periods. Allow the vehicle to sit for at least 8 hours without starting the engine. Then, start the engine and complete the above driving cycle. The engine must warm up to it's normal operating temperature. Once started, do not turn off the engine until the above driving cycle is complete. 315