2004 Ford F150 Owner Guide 5th Printing - Page 210

Roadside Emergencies 1. Use only a 12-volt supply to start your vehicle. 2. Do not disconnect the battery of the disabled vehicle as this could damage the vehicle's electrical system. 3. Park the booster vehicle close to the hood of the disabled vehicle making sure the two vehicles do not touch. Set the parking brake on both vehicles and stay clear of the engine cooling fan and other moving parts. 4. Check all battery terminals and remove any excessive corrosion before you attach the battery cables. Ensure that vent caps are tight and level. 5. Turn the heater fan on in both vehicles to protect any electrical surges. Turn all other accessories off. Connecting the jumper cables 1. Connect the positive (+) jumper cable to the positive (+) terminal of the discharged battery. Note: In the illustrations, lightning bolts are used to designate the assisting (boosting) battery. 210 2004 F150 (f12) Owners Guide (post-2002-fmt) USA English (fus) - - - + - + + +