The 2000 Nissan Altima sedan came equipped with a 2.4-liter, inline, four-cylinder, fuel-injected engine that produced 155 horsepower and 156 foot-pounds of torque. Nissan offered the Altima in the XE, GXE, SE and GLE trim packages. The GLE was the only sub-model that was equipped with a four-speed, automatic transmission, with all other sub-models sporting a five-speed, manual transmission. Nissan recommends changing the engine coolant after the first 60,000 miles, and then again every 30,000 miles thereafter.
Park the car on a firm, level surface that is solid, such as concrete or asphalt. Set the emergency brake and leave the transmission in "Park," or "Reverse" if equipped with a manual transmission. Chock the rear wheels.
Locate the forward jacking points just to the rear of the front wheel wells. Lift the Altima, using the jack, and support it on jack stands under the frame rail just forward of the jacking points.
Allow the engine to cool completely. Remove the radiator pressure cap and the coolant reservoir cap. Locate the radiator drain plug on the bottom, passenger side of the radiator. Position a drain pan beneath it, and remove the drain plug. Allow the engine water jacket and radiator to drain completely. Reinstall the drain plug and tighten it securely. Lower the vehicle.
Fill the engine water jacket, radiator and reservoir with a 50-50 mix of genuine Nissan anti-freeze, or equivalent, and demineralized or distilled water. Install the radiator pressure cap.
Start the engine and check for leaks. Turn the heater to the "Full Hot" position, and the blower to "Max" speed. Allow the engine to idle until hot air blows from the vents and the temperature gauge shows the temperature in the operating range. Turn the car off and allow it to cool completely. Check and top off the coolant level in the reservoir as needed.
