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Why does your car leak engine coolant?

Updated: 8/30/2023
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Dirtbiker80199

Lvl 1
16y ago

Best Answer

your engine will get hotter after you shut off the engine. the coolant thus getts hotter the fluid then expands causing the drip

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Wiki User

16y ago
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Wiki User

16y ago

Try to determine the origination of leak i.e. hose, radiator,heater, etc.

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11y ago

We need to know where the fuel is dripping from. More info would help, the year, make and engine.

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Q: Why does your car leak engine coolant?
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Water leak on passenger side of 98 Jeep Cherokee?

If the drain plug under the evaporator coil is plugged up it will cause condensation to leak into the car. If the heater core is bad it will allow coolant to leak into the car. If the leak is warm and smells sweet it is the heater coil.


Water leaking on passenger side when car is started the water increases 1998 Catera?

It's the coolant control valve for the heater core that's leaking. It's under more pressure when the engine is running and that why the leak is more noticable.


What is wrong when a 1992 Honda Accord is losing coolant but has no leaks or overheating or fumes in exhaust and the thermostat and radiator fan work?

If it had no leaks it would not be loosing coolant. So therefore it does have a leak. It can be leaking in a spot where the coolant burns away before dripping on the ground. Also a blown head gasket is a possibility. Look for coolant in the oil. A heater core can leak. Do you smell coolant inside the car or are the windows fogging up or developing a film. You need to have a pressure test run on the cooling system and find this leak.


Why would antifreeze leak from the exterior driverside firewall 2002 Mazda mpv?

Because your Vehicle's heater derives heat from hot coolant that is cycled out of the engine block. Basically, a coolant line is routed from the engine, through the firewall, and through radiating fins in front of the blower motor's output. The heat that comes out of your car's heater is actually heat energy absorbed from the engine block into the coolant, and then the heat energy is absorbed from the coolant when it goes through the *heater core* (radiating fins) and absorbed through the radiating fins and heats the air that is pushed through by the blower motor (resulting in hot air). The coolant after it goes through the radiating fins of your car's heater core is then pumped back through the firewall and to the radiator where it is cooled much more. The coincidence is that when you go to your vehicle on a 45 degree or colder day, and start the engine, turn on the heater, and it blows cold air: it's because your car's engine hasn't warmed up yet. Once it idles for 20 minutes, or 10 minutes of driving, the heater is crispy hot and feels good. One of the coolant lines going through the firewall has a leak.... STOPLEAK might fix it. STOPLEAK also likes to freeze up old thermostats, so be careful. Do you mean the leak occurr outside the vehicle, not inside? Are you sure it's not just the condensate from the AC from the drain tube? if it's antifreeze, then you have a leak. The lines for the rear heater are notorious for rusting out.


Coolant leak caused by bleeding screw?

If there is a coolant leak that is caused by the bleeding screw, the screw is probably stripped and needs to be replaced. The screw can also be wrapped with plumber's tape and screwed back in until the leak can be fixed.

Related questions

What does it mean if Car is leaking fluid and steaming?

if car is leaking fluid , it has a leak a leak and steaming indicates it is engine coolant and the engine is over heating find the leak and fix it before your trash your engine


What does coolant spraying all over engine mean?

You have a coolant leak.You have a coolant leak.


Why is car leaking coolant and not over heating?

Just because there is a leak doesn't mean it will overheat instantly, but if you do not keep adding coolant or fix the leak you will have engine problem


Why does coolant leak when the engine is off on 99 grand am?

why does the coolant only leak when engine is off on my 1999 grand am?


Does radiator stop leak hurt your car?

Yes. Can clog coolant passages in your engine and other areas.


Why is my car overheating and get no heat inside the car?

You are probably low on coolant. You need coolant to heat the cabin and cool the engine. Add more coolant and take your vehicle to a shop to find/fix the leak.


Where could a leak be coming from the engine coolant?

If you can see no external leak, then suspect an internal leak as in a Blown Head Gasket. This is very serious and severe engine damage will occur if you continue to drive the car. Get this repaired ASAP, and stop driving the car. You do not let us know if you see coolant on the ground or on the engine. It's hard to diagnose with out a little more info.


Why do you keep on having to add engine coolant to a car?

Maintaining the fluids in the cars is important. A person has to keep replacing the coolant fluid because the car is using it or because there is a leak.


Why would you suddenly start smelling coolant in and around your car?

You may have a leak of coolant. Take your car to a shop and tell them you are smelling coolant and may have a leak.


Why a coolant leak in the middle of engine?

Head or head gasket leak


Will a bad freeze plug prevent car from starting?

A bad freeze plug will leak coolant and cause the engine to overheat.


Can head gasket leaks destroy an engine?

yes, especially if the leak is causing coolant to leak, you can run out of coolant. then overheat.