By January 9, 2012 Read More →

How to Diagnose a Cooling System Problem

Start the car and head toward the light, and you see steam coming out from under the hood. Now turn on the alarm light on the temperature of the engine. Perhaps you’re driving down the road in cold conditions, and it seems as if the car will use more gasoline and heating did not work. Both scenarios correspond to cooling system problems of the vehicle.

Pay attention to the temperature of your car . When heated, this may be due to some problem in any of the various components of the cooling.

Check the leak . This should be the first action you take to determine if you have any problems with the cooling system.

Make sure the car has enough coolant, which is the temperature, and operating under the correct pressure.

Locate the different water hoses, the car with the hood up. There is a hose upper and lower motor, and two hoses from the heater.

Check for leaks around hose traps, or a slot in them.

Look around the radiator to make sure it does not leak and is not, therefore, the cause of your problems.

Remove the radiator cap after the car has cooled . Now, start the engine and bring the car to operating temperature.

Look inward, and you should see the coolant flow, if the thermostat is working properly. If you do not see it, then the thermostat is stuck and have to replace it.

If you are having heating problems, then you may have a problem with central heating, which could be blocked, and need to be replaced. Two hoses located slightly smaller than the engine and go to the back of the engine compartment. One of these hoses should feel slightly warmer than the other, when the engine reaches operating temperature and the heater is on. If one is significantly cooler than the other, the central heater is closed and may need to be replaced.

Look for other causes of the problem .

The problem can also be caused by a water pump. He looks down and tries to detect if there is a hole that drips from the bottom of the pump (motor off).

The water pump is failing, and needs to be replaced, if you feel that there is coolant or moisture.

The pump impellers can be damaged. In this case, not enough coolant through the system, and must be replaced.

It may also be that the radiator is blocked. This can happen in vehicles where cooling systems are not cleaned routinely, or not replace the coolant. The latter should be done at least once a year. The fix is ​​to replace or rebuild the radiator.

There may be a problem of overheating in cars with electric fans for cooling, if they are not working.

With the vehicle parking, and the temperature, check the fan turns on and pulls the outside cold air over the radiator. If not, you need to be replaced. Before doing so, take it to a trusted mechanic and let him check if there is a blown fuse or a bad connection.

Overheating is not the only problem that the vehicle’s cooling system can present. Some vehicles may run too cold. While this is not a problem so strong for the motor and overheating can lead to inefficient fuel consumption. The optimum operating temperature ensures proper combustion. This problem is similar to overheating, except that the thermostat is open.

Check the thermostat while the car’s engine is cold . Remove the radiator cap and start the engine. Look at the radiator. The thermostat has been opened and needs to be replaced, if you see that the coolant is flowing. Could also have a problem with the heater core. Check this in the way indicated in the steps above.

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