Corrosion within the radiator is one of the leading reasons that coolant leaks. As the tubes get older and weaker, you may get sediment or debris inside that causes a leak. The sealing gasket between the tank and the radiator can also wear out, and that could lead to a leak.
How do I know if my internal coolant is leaking?
If you suspect an internal coolant leak, allow the radiator to cool, take off the cap, and look for signs of oil or frothy bubbles in the radiator or header tank. With the engine running, smell the coolant itself - if there is a whiff of exhaust gas , the cylinder-head gasket may be leaking.
What are the most common places for coolant to leak?
The most common coolant leaks occur in the hoses that connect your engine to your radiator or heater core, or other small hoses running coolant to different equipment on your engine. The best way to stop these leaks is usually to replace the hose as they are inexpensive and easy to get to.
How much does it cost to fix an internal coolant leak?
If your car is leaking coolant, it can cause an engine to overheat and that can result in a totaled vehicle. The average cost of a coolant leak fix is around $786.00. If you catch the problem early on, it may only be around $100.
Related Question What causes an internal coolant leak?
Is Stop leak bad for cooling system?
When you carefully follow the instructions for our engine, radiator or other stop leak products, there is no risk of damage.