Component Tests and General Diagnostics

Check the engine coolant level in the reservoir by removing the reservoir cap and checking the dipstick while the engine is cold. The level should be at or above the "FULL COLD" mark on the dipstick when the engine is cold. At normal operating temperatures the engine coolant level should be at or above the "FULL HOT" mark on the dipstick. Engine coolant should be added only to the reservoir to raise the level to the appropriate mark. Use a 50/50 mixture of DEX-COOL engine coolant and water (preferably distilled) for engine coolant additions. Every five years or 241350 kilometers (150,000 miles), whichever comes first, the cooling system should be drained and refilled.