How to Test for Coolant Leaks in Your Car > 자유게시판

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Performing a leak test on your vehicle’s cooling system is a crucial step in avoiding engine damage from catastrophic failure. Over time, hoses, gaskets, and the radiator can develop micro-fractures that allow coolant to drip away. Spotting these leaks early can prevent expensive repairs down the road. Begin by ensuring your vehicle is parked on a level surface and that the engine is completely cooled. Do not open the radiator cap or overflow bottle while the engine is hot, لوازم یدکی tiggo 7 pro as the intense steam and thermal energy can cause serious injury.

Once the engine has cooled, conduct a thorough visual check all components of the cooling system. Look for wet spots, crusty white or greenish residue, or puddles under the vehicle. Focus on the cooling fins and core, coolant lines and clamps, coolant pump and seal, heater hose junctions, and the radiator cap. Small leaks can be nearly invisible, so clean every surface with a lint-free cloth and check for new dampness after a short waiting period.

Next, you’ll need a heating system leak detector. These low-cost tools are easily found at major automotive retailers. Remove the radiator cap and secure the pressure tester following the included guidelines. Most vehicles require a range of 13–18 pounds per square inch. Consult the factory recommendations for the manufacturer-specified pressure. Engage the tester to the specified level and let it sit for at least 10 to 15 minutes. Observe the reading continuously. If the pressure declines, you have a fault somewhere in the system.

If the pressure stays stable, your system is likely airtight. If the pressure falls, you’ll need to locate the source. Recheck all hoses and connections for moisture traces. You may also notice a subtle air leak if the leak is localized. If the leak remains invisible to the eye, add a fluorescent dye into the coolant and scan with an ultraviolet lamp to reveal it. Some leaks, such as a failed head gasket or a damaged cylinder wall, may be undetectable without a machine shop.

If you suspect an intra-engine leak, such as coolant entering the oil passages or entering the combustion chamber, inspect the engine oil for a frothy discoloration or observe exhaust fumes for steam-like emissions. These are strong indicators of critical engine problems that require immediate attention.

After the test, safely bleed the pressure from the system and remove the tester. Replenish the coolant to the full cold fill line using the factory-approved fluid recommended by your vehicle’s manufacturer. Always recycle coolant according to regulations, as it is toxic to animals.

Routine inspection your cooling system, especially ahead of extreme weather, can help ensure reliable performance. Even if no leak is found, it’s a good idea to change the coolant at factory intervals. Keeping your cooling system in proper working order ensures your engine maintains optimal temperature and reduces long-term wear.