Layout of the air distribution and filtration system components on the intake of a 4.0-liter V6 gasoline engine
| Item name | Spare part catalog number | Description |
| 1 | - | Air filter housing |
| 2 | - | Air intake |
| 3 | - | Intake Manifold Variable Volume Valve (IMTV) |
| 4 | - | Intake manifold |
| 5 | - | Electronic throttle |
| 6 | Filter contamination sensor (installed upon request) |
The main components of the air intake and distribution system of the 4.0-liter V6 engine:
- Air filter housing
- Air intake
- Intake manifold
- Electronic throttle
Air filter housing
The air cleaner housing is located at the front of the engine compartment on the inside of the right front fender. Air enters the air cleaner housing from the air intake in the fender through a channel in the fender.
Located after the air cleaner housing and the mass air flow/intake air temperature (MAF/IAT) sensor is the resonator.
Intake manifold
Air intake manifold
| Item name | Spare part catalog number | Description |
| 1 | - | Intake manifold |
| 2 | - | Electronic throttle |
| 3 | - | Intake Manifold Variable Valve (IMTV) |
The intake manifold is located at the top of the engine between the two cylinder banks. The manifold is made of aluminum alloy. The intake manifold includes a central receiver with 6 channels leading to the intake channels of the cylinder heads.
Intake Manifold Variable Volume Valve (IMTV)
Intake Manifold Regulating Valve
| Item name | Spare part catalog number | Description |
| 1 | - | Intake Manifold Variable Volume Valve (IMTV) |
Intake Manifold Regulating Valve
The Intake Manifold Variable Transmission Valve (IMTV) is located on the right front side of the air intake manifold. The IMTV is controlled by PWM signals sent by the ECM. For more information, refer to Electronic Engine Controls (303-14A Electronic Engine Controls - 4.0L). IMTV moves a plate inside the intake manifold, allowing or blocking sound pulses that are transmitted between the individual halves of the manifold. In effect, this results in wider intake runners and optimized low-end torque.
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