Air Induction System

Operation-Heated Air Intake:

Air Cleaner With Heated Air Intake System:

DESCRIPTION
To route cool air from the exterior of the engine compartment to the intake manifold, an air intake system is used. A filter is incorporated into the system to keep dirt from entering the engine. Some applications also have a heated air intake system for better driveability while the vehicle is warming up. Below is a description of that system operation.

OPERATION
The heated air intake system regulates incoming air temperature without the use of vacuum. The air regulating damper is controlled by a self-contained, wax pellet actuated assembly mounted in the air cleaner. When the incoming air is cold, the wax material sealed in the actuator is in a solid (contracted) phase and the damper closes off the cold air inlet. This causes all incoming air to become heated by the exhaust manifold. As the incoming air warms, the wax material expands by changing to liquid phase and forces out a piston to reposition the damper. This allows for a cold/hot air mix, or for cold air only to enter the engine.