| Topic | Summary |
| Checking & adjusting coolant |
The objective of this procedure is to show you how to check and adjust coolant levels and test coolant quality in a vehicle with a recovery reservoir. 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. |
| Draining & refilling coolant |
The objective of this procedure is to show you how to drain cooling system and refill with correct mixture of engine coolant. 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. |
| Checking & replacing a coolant hose |
The objective of this procedure is to show you how to check, remove and replace coolant hoses. Never try to assess the serviceability of a coolant hose while the engine is hot. |
| Testing cooling system pressure |
To test the cooling system for both internal and external leaks, a pressure tester is normally used. These are often referred to as cooling system testers or analyzers. The objective of this procedure is to show you how to test a cooling system to confirm that it is without leaks and has the ability to hold the pressure specified by the manufacturer. |
| Removing & replacing a radiator |
The objective of this procedure is to show you how to safely remove and replace a radiator. Once the radiator has been removes carry out a visual inspection of the radiator to ensure that it is suitable for reinstallation in the vehicle. |
| Removing & replacing a thermostat |
The objective of this procedure is to show you how to safely remove and replace a cooling system thermostat. Coolant in the cooling system could be above its boiling point. Never open a radiator cap fully until ALL pressure has been released. |
| Inspecting & adjusting an engine drive belt |
There are two types of drive belts: V-type and Serpentine type. The objective of this procedure is to show you how to inspect and manually adjust engine accessory drive belts. |
| Replacing an engine drive belt | Many vehicles require the technician to manually adjust the tension on the belt. Other vehicles have an automatic spring tensioning system. Depending on the system used on the particular vehicle, you should always follow the manufacturer's service instructions. The objective of this procedure is to show you how to remove and replace an engine accessory drive belt. |
