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How to Check the 5 Essential Fluids in Your Car
Checking your oil and adding engine coolant, brake fluid, power steering fluid, and windshield washer fluid are essential for maintaining your car.
The Best Tool to Eliminate Air Bubbles
Air bubbles can form while mechanics perform service on coolant systems. A vacuum coolant filler helps eliminate this problem to avoid serious damage.
The Best Tool to Find Coolant Leaks
Diagnosing a car issue can be a tricky without proper tools. A coolant pressure tester is useful for diagnosing overheating issues and coolant leaks.
How To Keep Your Car From Overheating
Monitoring your coolant level, turning the A/C off in very hot weather, and regular inspections will help you avoid having an overheating car.
How to Replace a Coolant Reservoir
A coolant reservoir is at fault if coolant is leaking underneath the vehicle or if the coolant sensor remains on all the time.
5 Commonly Overlooked Vehicle Maintenance Items
Brake fluid, auto transmission fluid, and coolant flushes, as well as cabin filter changes and valve adjustments, are all important services.
The Best Tool to Reach Hose Clamps
Hose clamps are present in most cars, but can be hard to reach. Remote access hose clamp pliers solve this common issue for automotive technicians.
How to Replace a Cylinder Head Coolant Temperature Sensor
Signs of coolant temperature sensor failures include sluggish acceleration, hard starting, and a Check Engine or Service Engine Soon Light.
How to Troubleshoot a Faulty Car Thermostat
When you are concerned about the routine maintenance of your car, it is natural to get to a point where you will ask yourself, what is a thermostat? And more importantly,...
How to Diagnose a Faulty Water Pump
The water pump is a part of your vehicle with an important role in the engine's cooling system. The job of the water pump is to cool down the engine with coolant,...
What Does the Coolant Temperature Warning Light Mean?
The coolant temperature warning light turns on when your engine is sensed to be too hot and is at risk of damage from overheating.
How to Replace a Radiator Hose
The radiator hose is an important part of your vehicle’s cooling system. The hose carries the coolant to the radiator, where the fluid is cooled, then back to the engine...
How to Use Engine Block Sealer to Repair a Head Gasket Leak
Head gasket leaks occur when engines overheat and can be costly to repair. Engine block sealer can be a quick and easy alternative for minor cases.
How to Calculate the Concentration of Coolant in a Car
A vehicle's cooling system helps transfer heat away from the engine, allowing the vehicle to function at a normal operating temperature. Without the coolant system, your vehicle would soon...
How to Replace a Coolant Level Sensor
Coolant level sensors are faulty if the coolant level sensor light stays on extensively or the engine overheats without the light coming on.
How to Replace a Coolant Temperature Sensor
The coolant temperature sensor switch is not working if the engine emits black smoke. The switch may have failed if the car gets poor fuel economy.
How to Replace a Car Surge Tank Hose
Replacing a surge tank hose involves working on the coolant system, which can burn you when the engine is hot. Stay safe by waiting for it to cool.
How to Remove and Replace a Heater Control Valve
The heater valve is integral to a vehicle’s cooling system. Replacing one requires a new valve, some basic tools, and fresh coolant.
How to Replace a Coolant Tube
The bypass hose in the coolant system may have failed when the coolant level is low and there is a visible leak underneath the vehicle.
How to Replace a Coolant Vacuum Valve Switch
A vacuum line attaches to the vacuum switch in your car as part of the engine’s heating and cooling system. A faulty switch can break your heater.

Related questions

Radiator leak
If the leak is of any significance, it's probably not drivable simply because the water will leak out too quickly unless you are talking about a very, very tiny pinhole. If the leak is visible and accessible, there are products...
Car is still overheating - 2006 Acura TL
There is no bleed screw on the 2nd generation TLs. Bleed the cooling system with the nose of the car higher than the rear if possible let it heat up at an idle until the thermostat opens and allow all...
Where is the coolant leak coming from?
For an issue like this, you would need to do a cooling system and pressure test so the actual leak can be found. Once the test is done by a mechanic then you would get a quote for the exact...
Replace water pump
Hello. If your vehicle is leaking antifreeze, especially at the water pump, then I would stop driving the vehicle and get it repaired as soon as possible. An engine leaking at the water pump is likely to overheat quickly, which...
My car is spitting coolant from the overflow tank
Hi and thanks for contacting YourMechanic. Check the coolant strength to see what the protection is. A good protection will read 164 degrees Fahrenheit. Check the radiator cap to see if the seal is torn or if the release valve...
Leaking coolant
First of all I'm glad to hear you are just using water. I always advise customers to use just water if they are experiencing a leak and can't get it fixed right away. My question is did the pressure gauge...
AC not taking coolant
Hey there. You may have a bad A/C compressor if you see the compressor engage but the high and low pressures stay the same. If the high pressure spikes above 300 or more, then the compressor can produce pressure but...
My car is overheating and constantly filling with water
Thats a good question. I will go through a few steps you can take to see where your problem is occurring. Get a UV light and dye to put in your coolant. Run your car until it...
Possible fixes for overheat
Good question and I'm sorry about the problem you are having. However, I need to know where your leak is coming from. Is it in the front or the sides? I recently had a customer with the same exact car...
My car is overheating and coolant is leaking
This may suggest a blown head gasket. When this happens, the cylinder head gasket fails which can cause coolant to leak into the combustion chamber causing it to be ignited with the fuel. This is what causes the light colored...
I'm loosing coolant. In some cases it takes a week to refill it again, especially when I'm driving in areas where there is vibration like gravel roads.
This may be a result of a leak in your radiator or potentially a blown head gasket. In the case of a leak, this may be a slow leak and may be hard to notice. Check for wet spots underneath...
Car is leaking coolant, and overheating, is it the intake manifold gasket?
This may be related to a few different things such as a bad thermostat, a failing coolant fan relay, or a blown head gasket. As you may know the thermostat regulates the flow of coolant in and out of the...
Poured coolant in engine, now it won't run.
Hello. If you poured anti-freeze into the engine crank case, then it may very well be possible that a serious mechanical issue has occurred. If any water or antifreeze find their way into the engine, they can contaminate the oil...
My car has a coolant leak but the engine is not overheating.
Since you have had the water pump and intake gasket replaced in the last two years, I would recommend having the system pressure tested and inspected to see if the radiator is leaking or the water pump is leaking again....
Car has white smoke coming out of the left exhaust when idling or just after pulling off from a stop. Fine after that
Are you losing coolant? If so, the white smoke (steam really) is coolant being lost out of the exhaust. If the car only does this when first started in the AM, it may simply be condensation being burned off, which...
Car keeps overheating and losing antifreeze. Thermostat and hoses are all fine. What else could it be?
Hi. I believe your Hyundai has a blown head gasket. This failure mode may not contaminate engine oil with coolant as sometimes occurs. The lost coolant may go into the cylinder or the exhaust instead. A slightly sweet smell from...
Coolant leak from a black box (HVAC box)?
The most likely cause of your leak is the heater core inside of the car's heater case. The leak will come out of the A/C's drain. If you are going to bypass the heater core then I would recommend connecting...
Can a gasket leak from the intake leak air into the cooling system?
Hi there. An intake gasket leak would allow unmeasured air into the intake and create a lean condition, not an overheating issue. Base on what you've described, it sounds like you may have a leaking cylinder head gasket. Adding sealants...
Engine overheats, heater blows out cold air, coolant boils in radiator
Sounds like multiple problems here. I would first correct the "no heater" scenario. This is likely the heater control valve not allowing what is clearly hot water into the heater core. The reason for correcting this first is that it...
Smoking and smell of antifreeze
If you engine just started to pour white smoke out the exhaust then most likely you just blew your head gasket. It could be from overheating or corrosion inside engine caused the head to leak coolant into the cylinders and...

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