The cause of many characteristic engine failures is a malfunction of the cooling system. On vehicles with automatic transmission, the condition of the cooling system significantly affects the durability and trouble-free operation of the transmission.
The cooling system is checked on a cold engine. Check the system before driving, or at least 3 hours after stopping the engine.
1. Turn the radiator cap to the left until it stops. If you hear a hiss (indicating residual pressure), then do not remove the plug until the pressure is completely relieved. Now press the cork with your palm, turn to the left and remove the cork. Rinse the plug thoroughly with clean water, wipe the radiator neck with a clean rag. Remove all traces of corrosion. The coolant in the radiator must be clear. If the coolant is rusty, the system should be flushed and the fluid changed. If the coolant level is below the edge of the filler neck, add a mixture of water and antifreeze (see subsection 2.5.2).
2. Check the condition of the upper and lower radiator hoses and heater hoses. Inspect the hoses along their entire length, if swelling of the hoses, cracks and general deterioration of the hose is found, replace the hose. Cracks are easily detected if the hose is pinched. Regardless of the condition of the hoses, it is recommended to change them every two years.
3. Make sure all connections are tight. A coolant leak can be detected by a white or brown coating near the leak. If the hoses are secured with wire clamps, these should be replaced with screw clamps.
4. Use compressed air or a brush to remove the remnants of insects, plants and foreign objects from the intercostal spaces of the radiator and condenser of the air conditioner, while not damaging the fins of the radiator or condenser. Be careful as the ribs have sharp edges.