Coolant leaks are usual in vehicles of all shapes and sizes. Discover out what causes coolant come leak, and how to fix the issue permanently v K-Seal!

Why does mine engine coolant save disappearing?

Sometimes engine coolant appears to disappear, together if through magic. However, the reason your car’s shedding coolant is much from magical: it’s practically always many thanks to a coolant leak.

You are watching: Will a radiator leak cause the check engine light to come on

There are three main causes for coolant leaks: outside leaks, radiator cap leaks and internal leaks.

Common signs of a coolant leak

The easiest way to recognize if you have actually a coolant leak is by checking underneath the engine for any kind of puddles that are developing when she parked.

If you notice one, keep an eye on your coolant levels as you drive. If they begin dropping faster than normal, then you’ve probably gained a coolant leak on your hands!

Can coolant leak reason check engine irradiate to show?

Some automobile owners have additionally reported noticing the ‘Check Engine’ light displaying ~ above the dashboard before identifying a coolant leak. 

A ‘check engine’ irradiate on a dashboard.

This is because, when the coolant level is too low that obviously influence the temperature level in the engine. If the temperature sensor in the engine judges the coolant come be as well low come effectively protect the engine, that will carry out a false reading, and also trigger the ‘Check Engine’ light.

How come identify exterior coolant leaks

Check your radiator hoses, the radiator and also coolant reservoir or tank. Radiator hoses are typical culprits, together the rubber hoses might degrade over time. Common signs of damage to these incorporate swelling, cracks, inexplicable softness or holes.


Generally, little holes in her radiator hoses or loosened connections between hoses and the cooling system are the most likely reason of an outside coolant leak.

How to fix an external coolant leak

This must be reasonably simple, and cost effective. If you an alert any the the usual signs your radiator hoses are damaged, change them immediately.

However, outside leaks can additionally occur if her radiator is damaged or leaking. And if it is the case, you require to acquire hold that a radiator prevent leak or you could be risking more engine problems.

A radiator cap leak could cause you to shed coolant

A certain radiator cap will seal the radiator system and maintain its pressure. This is crucial to ensuring the the mix of coolant and also water designed have the right to move through the system to cool the engine together needed.

If the radiator lid is loosened or leaking, this reduce the pressure and makes the harder for coolant to save the engine from overheating.

A auto radiator cap.

You deserve to diagnose this yourself by consulting your vehicle owner’s manual and also checking the radiator lid to make certain it has actually the best pressure. Friend can likewise take it come a mechanic because that a organization to it is in sure.

What reasons coolant to leak internally?

If you’ve confirm your vehicle for external and also radiator cap leaks but found nothing, check your coolant levels.

If her coolant levels space still walking down in spite of there gift no proof of a leak, friend may have actually a bigger problem: an internal coolant leak.

A leaky or puffy head gasket is frequently what reasons coolant come leak internally. Developing a seal roughly the combustion chamber, a head gasket is critical to avoiding engine coolant and oil native contaminating that chamber and causing serious, costly damage to your engine.

Fortunately, there space a variety of common symptom of a leaky head gasket you have the right to watch the end for to protect against this happening.

How lot does it cost to settle a coolant leak in a car?

The cost of addressing an internal coolant leak in a auto can it is in around $100 if you take it come a mechanic. But the much longer you leave it, the much more damage have the right to be done to your engine, and also the more repairs will cost you.

Can you drive a automobile with a coolant leak?

We’d strong recommend versus it. Save driving regardless of the warning signs, and you’ll only do an ext damage to her engine. And also that means more costly repairs!

If you do must drive come a mechanic or to pick up a party of coolant leak repair, that’s completely understandable. Simply make certain you store an eye on her coolant levels.

Watch out for short coolant level in her engine.

If your coolant levels start dropping even more quickly, then you have a serious internal coolant leak that demands fixing, fast. 

How to protect against a coolant leak, permanently

Catch a coolant leak early and you deserve to avoid i have lot of money repairs by grabbing a party of K-Seal Coolant Leak repair from your local supplier.

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Trusted by countless customers and mechanics worldwide, that is scientifically proven formula seeks out any type of holes and also cracks and holes in her engine, sealing castle permanently. Follow the an easy instructions top top the label and also your coolant leak will be repaired in minutes—getting you back on the road, fast.