2002 Nissan Frontier Owner's Manual - Page 194

MAINTENANCE PRECAUTIONS Automatic transmission fluid level* Check the level after putting the selector lever in P with the engine idling at operating temperature. Engine coolant level* Check the coolant level when the engine is cold. Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc., that may have accumulated. Make sure the hoses have no cracks, deformation, rot or loose connections. Engine drive belts* Make sure the drive belts are not frayed, worn, cracked or oily. Battery* Check the fluid level in each cell. It should be between the MAX and MIN lines. Vehicles operated in high temperatures or under severe conditions require frequent checks of the battery fluid level. Exhaust system Make sure there are no loose supports, cracks or holes. If the sound of the exhaust seems unusual or there is a smell of exhaust fumes, immediately have the exhaust system inspected by an authorized NISSAN dealer. See the carbon monoxide warning in the ''Starting and driving'' section of this manual. Underbody The underbody is frequently exposed to corrosive substances such as those used on icy roads or to control dust. It is very important to remove these substances from the underbody, otherwise rust may form on the floor pan, frame, fuel lines and exhaust system. At the end of winter, the underbody should be thoroughly flushed with plain water, in those areas where mud and dirt may have accumulated. See the ''Appearance and care'' section of this manual. Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle has been parked for a while. Water dripping from the air conditioner after use is normal. If you should notice any leaks or if gasoline fumes are evident, check for the cause and have it corrected immediately. When performing any inspection or maintenance work on your vehicle, always take care to prevent serious accidental injury to yourself or damage to the vehicle. The following are general precautions which should be closely observed. WARNING ● Park the vehicle on a level surface, apply the parking brake securely and block the wheels to prevent the vehicle from moving. For manual transmission models, move the shift lever to N (Neutral). For automatic transmission models, move the selector lever to P (Park). ● Be sure the ignition key is in the OFF or LOCK position when performing any parts replacement or repairs. ● Never leave the engine or automatic transmission related component harnesses disconnected while the ignition switch is in the ON position. ● Never connect or disconnect the battery or any transistorized component while the ignition switch is in the ON position. Maintenance and do-it-yourself 8-5