Checking & adjusting coolant
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There are two correct level marks on the reservoir because the coolant in the system expands and contracts in volume depending on how hot it is.
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Draining & refilling coolant
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Some vehicles have drain plugs on the side of the engine block. The shop service manual will tell you if these need to be opened when draining the coolant.
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Checking & replacing a coolant hose
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You may need to use a torch to inspect the coolant hoses so that you can clearly see if the surface is starting to crack.
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Testing cooling system pressure
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Test a cooling system to confirm that it is without leaks and has the ability to hold the pressure specified by the manufacturer.
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Removing & replacing a radiator
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If changing coolant, dispose of the old coolant properly in accordance with environmental and legislative requirements.
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Removing & replacing a thermostat
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Coolant in the cooling system could be above its boiling point. Never open a radiator cap fully until ALL pressure has been released.
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Inspecting & adjusting an engine drive belt
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A belt that has been soaked in oil will not grip properly on the pulleys and will slip. If the oil contamination is severe enough for this to happen, replace the belt.
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| Replacing an engine drive belt |
If you don't have a tension gauge, you can estimate the tension by pushing the belt inwards with your hand. |
