How to Stop Radiator Leak Problems

Just about any vehicle can develop a radiator leak. Corrosion and worn-out hoses are common problems for older radiators. For newer vehicles, road debris can puncture the radiator or cause clogging. Whatever the source, when a radiator begins to leak coolant, a chain reaction is set off that eventually leads to an overheated engine. This is one of the worst things that can happen to a vehicle. If you have some experience working on cars, there are a few steps you can take to stop a leaking radiator.

Instructions

1

Inspect the radiator, engine, radiator cap, water pump, hoses connected to the radiator and all of the seals to check for signs of leaking. There are several methods of checking for leaks, including a visual inspection while the engine is running.

2

Replace any torn hoses. Detach the hose from both ends, clean the connection, and install the new hose, making certain to tighten the rings that hold the ends.

3

Replace the radiator cap if it is leaking.

4

Solder or glue any parts of the radiator that might be broken or leaking. You can use a solder and soldering iron to reattach broken parts, including hose connectors. Use a standard epoxy glue to fill holes or cracks in the radiator.

5

Pour cooling system sealant (powder or pellet form) directly into the radiator when the vehicle is cool. This will stop internal leaks. Operate the vehicle for 30 minutes or more to get the sealant to mix with the coolant and go into any leaks in the radiator.