2011 Ford Ranger Super Cab Owner Guide 2nd Printing - Page 253

Maintenance and Specifications The OBD-II system is designed to check the emission control system during normal driving. A complete check may take several days. If the vehicle is not ready for I/M testing, the following driving cycle consisting of mixed city and highway driving may be performed: 15 minutes of steady driving on an expressway/highway followed by 20 minutes of stop-and-go driving with at least four 30-second 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. If the vehicle is still not ready for I/M testing, the above driving cycle will have to be repeated. POWER STEERING FLUID Check the power steering fluid. Refer to the scheduled maintenance guide for more information. • 2.3L I4 engine • 4.0L V6 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). 253 2011 Ranger (ran) Owners Guide, 2nd Printing USA (fus)