1994 GMC Safari Owner's Manual - Page 190

Good Battery (-) Heavy Metal Engine Part 9. Attach the cable at least 18 inches (45 cm) away from thedead battery, but not nearengine parts that move.The electrical connection is just as good there, but the chance of marks getting back to the battery is much less. 10. Now start the vehicle with the good battery and runthe engine for a while. 11. Try to start the vehicle with the dead battery. it won't start after a few If tries, it probably needs service. 12. Remove the cables in reverse order to prevent electrical shorting. Take care that they don't touch each other or any other metal. Remove Cables In This Order: 2 1. Heavy Metal Engine Part 2. Good Battery (-) 3. Good Battery (+) 4. Dead Battery (+) 5-6