1997 GMC Suburban Owner's Manual - Page 247

12. Remove the cables in reverse order to prevent electrical shorting. Take care that they don't touch each other or any other metal. 9. Attach the cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connectionis just as good there, but the chance of sparks gettingback to the battery is much less. 10. Now start the vehicle with the good battery and run the engine for awhile. 1 1. Try to start the vehicle with the dead battery. If it won't start after a few tries, it probably needs service. A. Heavy Metal Engine Part B. Good Battery C. Dead Battery 5-7