1999 Chevrolet Malibu Owner's Manual - Page 80

yellowblue To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. On the 2.4L L4 engine, the engine coolant heater cord is located in front of the engine coolant surge tank. On the 3100 V6 engine, the engine coolant heater cord is located near the air cleaner/filter. 3. Plug it into a normal, grounded 110-volt AC outlet. CAUTION: 3100 V6 Engine 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. Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord won'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 moving engine parts. If you don't, it could be damaged. 2-18