To repair and diagnose an antifreeze leak, check the radiator cap first. If you’re lucky, and can’t see any additional leaks, the issue simply may be that the cap was damaged and does not have the ability to contain the pressure of hot coolant inside the radiator. The solution includes buying a new cap. Keep in mind to wait until the vehicle cools down prior to removing the old cap, as you might get a face full of boiling antifreeze.
Hoses and clamps
Next on your list includes checking the lower and upper hose clamps and radiator hoses. You easily should have the ability to see if a hose is split or cracked, as the coolant under Coolant Caps either will be spurting like a fountain or dipping out. Replacing this upper hose includes a fairly quick task. Replacing your lower hose often is a dirty and difficult job. If the hoses are fine, check the clamps.
As with all mechanical parts, hose clamps may loosen and weaken over time, and leave small spaces and gaps around outflow and intake openings. Replace the clamps with brand new ones. Upper hose clamp replacement is simple, as they’re easily accessible. Though again, because of the cramped engine compartments of pretty much all late-model vehicles, lower hose clamp replacement might cause cursing and scraped knuckles.
Radiator leaks
The next most typical antifreeze leak source will take place inside the radiator itself. It’s possible to attempt a quick fix, which includes pouring a can in of one of the multiple additives professing to cease pinhole radiator leaks. Occasionally it’ll work, and occasionally it will not. A radiator may be damaged by inside corrosion, flying debris or rocks, and occasionally merely by age itself. In any case, usually an additive repair is a temporary solution, and ultimately the radiator either will have to be replaced or repaired by a professional with knowledge of Coolant Caps and other such items.
Plastic overflow reservoir
The last simple repair for antifreeze leaks will lie in the radiator’s plastic overflow reservoir. The reservoir will take in coolant as it becomes too hot. After it cools, it’s sucked back inside the radiator. If there’s a crack or hole inside the reservoir, you’ll lose coolant on a consistent basis. The options include either trying to repair the hole or crack with glue, or buy a new reservoir.
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