Is It Necessary to Replace the Car Radiator If It Leaks?
2 Answers
Not necessarily. Here are the relevant details: Actual situation: Whether to replace a leaking radiator depends on the actual condition. The key is to identify the specific location of the leak and then determine if there is any repair value left. Otherwise, it might be better to replace it directly. Repair methods: Generally, radiator repairs can include welding or adhesive patching. For example, copper or iron radiators can usually be repaired with soldering. Alternatively, you can replace components like the left and right water tanks, inlet/outlet pipes, or cooling tubes. If the radiator is not completely damaged, welding repairs are an option. It is recommended that repair costs should not exceed 30% of the price of a new radiator. This can be used as a guideline to decide whether replacement is necessary.
I've been driving for several years. Last time when the radiator leaked, I first pulled over to check the leak point and found just a small crack on the edge. I used a commercially available radiator stop-leak agent, diluted it with water as per the instructions, poured it into the radiator, and drove for half an hour to test it—the leak stopped. Afterward, I cleaned it several times, and it's been working fine ever since. A leaking radiator doesn't necessarily need to be replaced; the key is to assess the extent of the damage. Small holes or minor damage can often be repaired; only large cracks require replacement. Regularly checking the radiator pressure and connecting hoses also helps prevent issues before they arise. Don’t rush to replace it at the first sign of a leak—it’s not only a waste of money but also time-consuming. I recommend that if you encounter a similar problem, first get it evaluated by a professional shop—don’t panic.
