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Cooling System

Related articles

Symptoms of a Bad or Failing Radiator Hose
Common signs include leaking coolant, engine overheating, the Low Coolant Light coming on, and radiator hose damage or collapse.
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 Quickly Cool Down a Hot Car
Knowing how to cool off a hot car that has been sitting in the heat and sun can save you the discomfort of having to sit in...
How Long Does a Cooling Fan Relay Last?
The purpose of the cooling fan relay is to pull air through the A/C condenser and the radiator. Most vehicles have two fans, one for the radiator and one for the...
How Long Does a Cooling Fan Resistor Last?
The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. The resistor does this by drawing air through the radiator and...
Symptoms of a Bad or Failing Water Pump (Auxiliary)
Common signs include no warm air or fluctuating heat coming from the heater, the window defroster not working, and high pitched buzzing sounds.
How Long Does a Coolant Reservoir Last?
The coolant reservoir is a tank located in your vehicle that holds the overflowing coolant that comes from your cooling system. The reservoir is a clear plastic container located near the radiator....
How Long Does a Connector Hose Heater Control Valve Last?
The hose heater control valve opens and allows hot coolant from the engine to blow into the heater core. After the vehicle gets to the correct temperature, the thermostat...
How Long Does a Coolant Recovery Reservoir Last?
The coolant recovery reservoir is both an expansion tank as well as a coolant recovery tank. In modern vehicles, the radiator has no cap so it has no upper tank for...
How Long Does a Coolant Tube Last?
The coolant tube, or hose, carries coolant to and from the engine in your vehicle. First, the coolant tube removes the hot coolant from the engine and brings it to the radiator...
Symptoms of a Bad or Failing Water Pump
Common signs include coolant leaks at the front-center of the car, loose water pump pulley, overheating engine, and steam coming from the radiator.
How to Replace a Cooling Fan Resistor
The cooling fan may not work at all speeds if the resistor is broken. If the engine overheats or the fan never turns off, the resistor may be faulty.
How Do I Prepare My Car for Summer?
Summer's heat, dust, and stop-and-go traffic will take their tolls on your vehicle. Follow these tips to ensure optimum wellness of your car: Air Conditioning: Have your air...
How to Flush Your Cooling System
Flushing the cooling system is part of every vehicle's scheduled maintenance. This procedure is usually required every two to four years, depending on the vehicle. It is important...
How to Calculate the Concentration of Coolant in a Car
A car cooling system works to transfer heat from the engine. Check antifreeze level and condition, and mix coolant with water to prevent overheating.
Why Cooling System Repairs on a European Car Can Be Tricky
Repairing a cooling system, such as if there is a leak, can pose different obstacles. Many repairs may involve finding the radiator of the system.
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 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 Car Air Conditioning (AC) Compressor
If the AC compressor fails, it can cause the air conditioning system not to work. This article covers how to locate, remove, and install a compressor.
How to Replace a Condenser Fan Relay
A condenser fan relay operates the fan that removes heat from the engine. If faulty, it will not allow the A/C to blow cool air or function at all.

Related questions

Question
I've been told I have 2 thermostats on my 2013 Chrysler 200 touring?
There are two separate thermostats in your application, a primary and a secondary. The primary and secondary thermostats have different temperature profiles in terms of their opening temperature because they are located on different areas of the engine. The primary...
Question
overheating
The thermostat should not be removed from the engine (except for short term testing) and that tactic is never an accepted repair strategy that a professional mechanic would employ to solve an engine overheating problem. Removing the engine thermostat will...
Question
The coolant in my reservoir tank is hot and bubbling but i just my head gasket fixed a month or so ago. And while driving it gets
You should have the cooling system pressure tested to see if the system can hold pressure or the head gaskets are leaking again. The cooling system can be tested to see if combustion gases are getting by the head gaskets...
Question
Can a bad fuel pump cause overheating and loss of coolant.
Hello. We will be happy to help you. The coolant system and the fuel system are unrelated. If one is malfunctioning it will not have an effect on the other one. The fuel pump is also not belt driven, I...
Question
engine fan noise
The engine should always operate in the "normal" range as shown on your temperature gauge. If the temperature is too high, shut down the engine as overheating can have disastrous consequences (costly repairs). If too low, that is not an...
Question
Gurgling noise and transmission fluid leak 2009 Chevrolet Malibu
Hello - the gurgling noise is most likely a cooling system issue - perhaps overheating that has not yet caused a failure. Check coolant level (engine cold), and the transmission fluid level as well. Look for clear, pinkish (not dark)...
Question
Engine Gasket was Fixed
If you have crankshaft bearings that are damaged then you need to look at the first engine failure of coolant leaking from head gasket. If the coolant was getting into the engine crankcase then the coolant could of got into...
Question
Cooling system aux fans not working 2006 VW Jetta
Hello - in addition to the coolant temp sensor that triggers the cooling fan operation (so does the AC switch on most cars), the fans utilize one or more relays that route the power to the fan motor itself. Since...
Question
I have intermittent heating problem I have changed every cooling component and he continues to overheat in the matter of five seco
Be sure not to drive the car if it is overheating because overheating can warp the cylinder head and/or engine block causing costly damage. The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator,...
Question
Bubbles and pressure in the overflow tank
If the coolant level was low due to a leak, such leaks can be found during a leak diagnostic with simple pressure testing. If the cooling system doesn't maintain pressure, and no external leak is visible, coolant could be leaking...
Question
Radiator/coolant
Be sure not to drive the car if it is overheating because overheating can warp the cylinder head and/or engine block causing costly damage. The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator,...
Question
Leaky thermostat
It should be leakproof with the supplied gasket used alone. If it is leaking the flanges might have had residue on them, be distorted, or pitted. Although adding sealant "might" overcome those latter defects when you disassemble it just be...
Question
Thinking of buying a car owner said it needs a freeze plug how much would that be on a 2000 Toyota Camry
Hi there - unfortunately, replacing freeze plugs is not a service YourMechanic.com offers at this time. I do recommend a Pre-Purchase Inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to the vehicle location,...
Question
coolant replacement
Hello. The radiator cap for your particular vehicle can be purchased a part store like Advanced Auto or AutoZone. The radiator cap should cost about 8 to 15 dollars. The Duralast and Dorman radiator cap listed at AutoZone should fit...
Question
Brake system, coolant leak, brake fluid leak ,wheel hub
All of these repairs are feasible. Brake systems can leak at a variety of points but the repairs are pretty straightforward. What I would suggest is you visit the YourMechanic Internet portal and request brake leak diagnostic and repair service....
Question
97 chevy lumina low coolant light is blinking on and off and the coolant reservoir is bubbling over but car is not overheating wha
Hello, and thank you for writing in. The cooling system overflows into the reservoir when the pressure rises and the coolant is forced to go somewhere. This can mean a few different issues are occurring, but you should start with...
Question
Car heats up while idling.
You will need to have the cooling fan checked to see if it is coming on at low speed and then hight speed when you are idling. This can be due to the cooling system being low on coolant or...
Question
Why is my car leaking antifreeze?
Based on your description it sounds like your engine is overheating and the overheating is accompanied by a coolant leak. Coolant leaks can be both a cause and a consequence of overheating. Consequently, once the leak is repaired, your vehicle...
Question
99 F250 V10 oil in coolant
You will need to flush system out a few times and then make sure to flush out all the dawn you are using or the dawn will foam up. You should replace the radiator cap if you cannot clean out...
Question
Got new water pump less than 9 months ago. Now boiling sound and overheating smell. Temp says its good
Hello. The overheating issue your vehicle is having is likely not caused by the water pump once again. Though an inspection of your water pump performance should be checked when trying to diagnose this issue. The temperature gauge not going...

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