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How to Repair a Leaking Car Radiator
The radiator is the start of your car’s cooling system. Coolant from the engine travels through tubes in the radiator. These tubes are surrounded by fins designed to direct airflow. The air...
Symptoms of a Bad or Failing Oil Cooler
Common signs include oil or coolant leaking from the oil cooler, oil getting in the cooling system, and coolant getting in the oil.
Symptoms of a Bad or Failing Radiator Drain Cock
Common signs include leaking coolant, especially around the radiator drain cock, and threads stripping on the drain cock.
Symptoms of a Bad or Failing Radiator
Common signs include leaking coolant, vehicle overheating, sludge, and low coolant.
Symptoms of a Bad or Failing Stay Rod
Common signs your classic car has a failing stay rod include rattling noises from the front and a radiator that looks tilted or about to fall.
Is it Safe to Drive With a Cracked Radiator?
The radiator in your vehicle is used for cooling the internal combustion of the engine. Coolant is passed through the engine block, the heat is absorbed, and then fed into the radiator....
How Long Does a Radiator Drain Cock Last?
Your car’s coolant system is one of the most critical on the entire vehicle. Without it, the engine would quickly overheat, causing devastating damage. Coolant is cycled from the radiator, through...
How to Buy a Good Quality Cooling System Flush
Your radiator does the important job of helping to keep the engine cool. Overheating can cause serious, expensive damage like a blown head gasket (which typically requires complete engine replacement) or...
How to Add Radiator Fluid
The radiator is at the heart of your car’s cooling system. This system directs radiator fluid or coolant around the engine’s cylinder heads and valves to absorb their heat...
How Long Does a Radiator Last?
Your car’s coolant system is vital to ensure that the engine stays within operating temperature limits and does not overheat. It’s comprised of several different components. The radiator is the largest, but there...
How Long Does a Stay Rod Last?
In order to operate safely, your car’s engine needs coolant and a way to disperse the heat the coolant absorbs. That’s where the radiator comes in. It’s a crucial component of your...
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 Change a Radiator Valve
A radiator valve allows coolant into the radiator in order to cool off the engine once the coolant has reached a certain temperature.
How to Replace a Cooling Fan Relay on Most Vehicles
Cooling fan relays fail when the radiator cooling fan no longer receives an electrical signal. A broken fan relay means the radiator cannot cool down.
How to Pressure Test a Radiator Cap
Radiator caps are pressure tested using a cooling system pressure tester. This shows if the pressure in the cooling system is at a healthy level.
How to Replace a Radiator Fan Motor on Most Cars
The fan motor on the radiator fails when the engine overheats and the fan does not activate. This means that the coolant cannot cool the engine well.
How to Replace a Radiator Drain Cock
The radiator drain plug goes bad when the oil pressure is lower than normal, there is leaking coolant, or the Check Engine Light is on.
How to Buy a Good Quality Radiator
The numerous moving parts of a vehicle are certain to rub together, causing friction which generates a generous amount of heat. The motor oil that is being pumped in as lubrication can only...
How to Buy a Good Quality Cooling/Radiator Fan Motor
Fans are necessary to keep the components under your car’s hood from overheating. Excessive heat can cause warping, melting, and other damage, not to mention the additional energy suck. The radiator...

Related questions

Heat only works when accelerating
Hello. I suspect the heater control valve is the culprit here. Most likely only opening partially. By only being partially open, it allows more hot water to circulate when the engine load and RPM are higher, as when you accelerate,...
My radiator blew and overheated my van
You may have damaged the engine from continuing to drive it with it overheating. Specifically, you may have warped cylinder heads, cracked the cylinder heads, or pistons seizing in the cylinders causing a slower acting engine. The engine might start...
My radiator hose is soft like I can squeeze it. I was checking for air in the line cause it feels like I got heat until I turn up
A faulty hose can not create this symptom. If a radiator hose can be squeezed, it only means there isn't pressure in the cooling system, but this can indicate a problem. Cooling systems are designed to hold pressure. This raises...
Hot at idle and low when driving never stays in middle
Hi. This sounds like the water pump is not circulating the antifreeze in the engine. When a water pump stops circulating the antifreeze as well as it should the car tends to run hot when it is at idle and...
Radiator fan gets stuck sometimes.
This maybe a sign of a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working...
I put a new water pump and new thermostat and its still running hot. now the serpentine belt had broken off. what's wrong with car
Hi there. What you're describing sounds like you may have a serpentine belt, pulley, or another belt driven component that has failed. The water pump is driven by the serpentine belt and cannot circulate the engine coolant if the belt...
Just got a new radiator now it's making a clicking sound
Hello and thank you for contacting YourMechanic. With the information that is given, the only thing that can make a clicking sound after installing a new radiator is a radiator fan is coming in contact with the radiator, the shroud,...
Hole in my radiator hose
Unfortunately, we do not keep handy the pricing information of other service facilities. However, the best way to get a quote for services with Firestone would be to look up a shop near your area and give them a call....
Could it be the coolant sensor?
Hi and thank you for contacting YourMechanic. If your vehicle engine is overheating, there are 3 different things that can cause this problem. The first is the thermostat is not opening up. A stuck thermostat will cause an engine to...
wonderig the difference between the two diff types of radiators an some info on what will work, and ow to identify wich radiator i
Hello and thank you for your question. When it comes to determining what radiator is best for your vehicle, always the OEM radiator is recommended for it is designed for the vehicle. If you are unable to afford OEM parts...
Nissan Bluebird Sylphy Parts
To answer this question, you will need to look up the part numbers of both to see if they match. Look up the part numbers, and then if possible, have an expert conduct a side-by-side comparison of the parts to...
There is a leak around the thermostat housing which resulted in decreasing water in the radiator
Hi there. First thing we need to determine is from where on the housing is the coolant leaking. If it is coming from the thermostat location in the housing, it could simply be a thermostat gasket/O-ring leaking. If the leak...
Radiator fan running max
The issue you are having is either an electrical issue, or it is a cooling problem. The first step to take is to have the vehicle scanned for diagnostic troubleshooting codes. If the computer detects an issue, you will see...
Heating and noise coming from bonut, car getting turn off frequently
Hello and thank you for contacting YourMechanic. When the vehicle hit a stone, the radiator could have been hit and split open. This will cause the heat that you feel and the frequent shut downs due to the engine overheating....
Car keeps overheating, the cap will not fit on the radiator
The radiator will not cool the engine unless you can find a cap to fit it. The cap seals in the coolant and keeps pressure in the system to keep the system from overheating. If the radiator is an aftermarket...
The most common reason for this after a repair is an air bubble in the system. Most of the time, if you completely warm the car, which means you have confirmed the thermostat is open by feeling the upper radiator...
Car gets hot sometimes. I unplugged the temperature sensor, turned on my air, and switched relays, and my radiator fans still don't work
Hey there. You should have the cooling fans checked to see if the cooling fans are getting power from the control system. The overheating diagnosis may show the system fan relays are not being turned on by the computer. Only...
Popping sound in the radiator
The noise is the coolant is turning into steam due to low amount of coolant to water concentrations. The ratio should be 50% coolant to 50% distilled water or just purchase a 50/50 coolant that is already mixed. Since you...
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...
Radiator fan is not turning on
Once the relay and fuse have been checked and are working, the next thing to check is the controller for the fans that determines which fans operate and at what speed. There are several inputs to this controller: coolant temperature,...

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