Mounting the air cleaner under the hood of a semi truck increases the risk of the engine ingesting dirt, debris, and water. This is because the under-hood area is typically much dirtier and more prone to water ingress compared to the upper part of the engine compartment. As a result, the air cleaner may become clogged with dirt and debris, restricting airflow to the engine and causing it to run poorly or even stall. Additionally, water can enter the air cleaner and damage the air filter, leading to further problems.
2. Reduced Cooling Efficiency
Mounting the air cleaner under the hood can also reduce the cooling efficiency of the engine. This is because the air cleaner blocks airflow to the radiator and other engine components that need to be cooled. As a result, the engine may run hotter and be more likely to overheat, especially in hot weather or when the truck is under heavy load.
3. Increased Maintenance Requirements
Mounting the air cleaner under the hood can also increase maintenance requirements. This is because the air cleaner will need to be cleaned or replaced more frequently due to the increased dirt and debris buildup. Additionally, the air filter may need to be replaced more often due to water damage.