1997 Pontiac Firebird Owner's Manual - Page 76
1997 Pontiac Firebird Manual
Page 76 highlights
Engine Coolant Heater(If Equipped) 3. Plug it into a normal, grounded 110-volt AC outlet. Plugging the cord into ungrounded outlet an could causean electrical shock.Also, the wrong kind of extension cord could overheat cause and a fire.You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cordwon't reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. 4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from hot pipes, manifold or any moving engine parts. If you don't, it could be damaged. ' In very cold weather, 0°F (- 18"C) or colder, the engine coolant heater can help. You'll get easier starting and better fuel economy during engine warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. How long should you keep the coolant heater plugged To Use the Coolant Heater 1 . Turn off the engine. 2. Open the hood and unwrap the electrical cord. in? The answer depends on the outside temperature, the kind of oil you have, and some other things. Instead of trying to list everything here, we ask that you contact your Pontiac dealer in the area where you'll be parking your vehicle. The dealer can give you the best advice for that particular area. 2-27