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How to Fix Your Vans Engine Over Heating

How To Identify and Fix Your Van Engine Over Heating


This blog will detail all the possible outcomes and necessary steps to take in fixing your engine overheating problem. If at any time you feel unsafe or unsure of these steps and how to execute them, please seek mechanical guidance.

Blocked Radiator

There are 3 main problems that could be occurring when trying to identify what's blocking your radiator. The first one could be dirt and debris coming up from the roads which of course will contribute to the restriction of airflow. Second, it is a possibility that your radiator may have been blocked internally. This will require you to take a closer look with a torch, shine it inside and look for anything that might be causing the blockage. Third could be a signal that you have a coolant leak. 

Low Coolant 

You must make sure that the coolant is in the desired fill lines of your vehicles. This is set at a specific level to allow for a set amount of pressure to be applied. To check that it is working correctly, make sure the engine is turned off and had time to cool down. You should hear a small amount of pressure and this is to be expected. Gauge where your coolant level is, if it's very low then you may have a coolant leak and have to seek mechanical assistance.

Cooling Fan

You can find the cooling fan located behind the radiator. The job is of the cooling fan is to regulate the temperature of the radiator through the rotation. To make sure that it is working efficiently, you can test this by hand. Spin the wheel and make sure it rotates freely, with no jerks in motion. If you notice that it's not very smooth in motion then it may be time to replace your cooling fan. 

Blown Head Gasket 

This is typically the most common fault with your engine overheating. There is a tight seal that must be made in order for the combustion process to work with the engine block and cylinder head. The changing of temperatures from hot to cold, then cold to hot can cause this to fail over time. This is also one of the easiest to spot when it comes to finding the fault.

Simply start your engine and make sure your radio is turned off along with any AC or heating settings. Make sure you can hear the engine clearly and if it makes any strange noises then it's most likely to be the head gasket.

Faulty Thermostat 

If your thermostat is not working correctly, then it will think that the engine is always cool, and this can results in not enough (or any) engine coolant getting through to the radiator. If the thermostat is not doing its job properly, then you will notice your engine overheating typically within the first 10-20 minutes of starting up your engine. You may hear banging noises coming from the radiator as the hot and cold coolant try to mix. This is an indication of a bad thermostat.

Faulty Pump

The pump's job is to make sure the coolant is being circulated correctly all the way through to the radiator and the engine. The pump impeller may become less sturdy over time which can be an issue. Or, there can be a leak coming from the seal which can cause unusual noises in the form of grinding and squeaking.  If any of these issues occur then it may be time to replace your radiator pump.



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