2003 Mercury Mountaineer Owner Guide 1st Printing (Spanish) - Page 523

Maintenance and Specifications condition. To ready the on-board diagnostics system for I/M testing, a minimum of 30 minutes of city and highway driving is necessary as described below: • First, at least 10 minutes of driving on an expressway or highway. • Next, at least 20 minutes driving in stop-and-go, city-type traffic with at least four idle periods. Allow the vehicle to sit for at least eight hours without starting the engine. Then, start the engine and complete the above driving cycle. The engine must warm up to its normal operating temperature. Once started, do not turn off the engine until the above driving cycle is complete. CHECKING AND ADDING POWER STEERING FLUID Check the power steering fluid. Refer to the scheduled maintenance guide for the service interval schedules. If adding fluid is necessary, use only MERCON௡ ATF. • 4.0L SOHC V6 engine • 4.6L V8 engine 1. Start the engine and let it run until it reaches normal operating temperature (the engine coolant temperature gauge indicator will be near the center of the normal area between H and C). 2. While the engine idles, turn the steering wheel left and right several times. 236