For 1990-2009 cars

### Maintenance Intervals

Regular maintenance of the cooling system helps to keep the system operating properly. Check the cooling system at least once a year.

Every five years or 166,000 km (100,000 mi), whichever comes first, drain and refill the cooling system.

### Hoses and Clamps Inspection Procedure

• | Inspect the condition of all hoses and clamps. Hoses should be flexible and show no signs of bulging.

• | Inspect the hoses for cracks, kinks, and areas of possible leaks.

• | Inspect the hose brackets, supports, ties and clamps.

• | TIghten and adjust the components as needed. (The spring clamps are not adjustable.)

### Radiator Cleaning

Notice: Do not spray cold water on a hot radiator.

Notice: The heat exchanger fins are necessary for good heat transfer. Do not brush the fins. This may cause damage to the fins, reducing heat transfer.

At least once a year, clean the front face of the radiator. On vehicles with air conditioning, clean the front face of the condenser. Remove any bugs, leaves, and other material by blowing compressed air from the rear of the radiator towards the front of the vehicle. If compressed air is not available, use a water hose to force water through the radiator from the rear toward the front of the vehicle. Use water only with the engine off and cool.