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Faulty cooling systems cause many major engine failures. If you have an automatic transmission, the cooling system also cools the transmission fluid. Therefore, a properly functioning cooling system can prolong the life of your transmission.
Before you start, be sure the engine is cold when you check the cooling system. Check it either before you drive the vehicle for that day or after you have shut the engine off for at least three hours.
- Carefully check the large upper and lower radiator hoses along with the smaller diameter heater hoses, which run from the engine to the firewall.
- Inspect each hose along its entire length, and replace any hose that is cracked, swollen, or shows signs of deterioration. If you squeeze the hose, cracks may become more apparent.
Note: regardless of condition, it's a good idea to replace radiator hoses every two years, and replace your radiator every 7 years.
- Make sure the hose connections are tight. You may see white or rust colored deposits on the areas around the leak.
- With compressed air or a soft brush, remove bugs, leaves, or any other debris from the front of the radiator or air conditioning condenser.
Note: The cooling fins are both delicate and sharp. Be careful not to damage them or cut yourself.
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