Manifold Absolute Pressure (MAP) sensor – replacement
1. Disconnect the cable (s) from the negative battery terminal(s) (see Engine electrical systems).
3.6L V6, 3.7L V6 and 4.7L V8 engines
Note: On the 3.6L V6 engine, the MAP sensor is located on the top of the intake manifold. On 3.7L V6 and 4.7L V8 engines, the sensor is located in the front of the intake manifold.
2. Disconnect the electrical connector from the MAP sensor (see illustration).
10.2 On 4.7L V8 engines, the MAP sensor is located on the front of the intake manifold (3.7L V6 similar)
3. Remove the MAP sensor mounting screw and remove the MAP sensor from the intake manifold.
4. Remove the MAP sensor 0-ring and inspect it for cracks, tears and deterioration. If the 0-ring is damaged, replace it.
5. Installation is the reverse of removal.
Hemi engines
Note: The MAP sensor is located on the front of the intake manifold air plenum box.
6. Disconnect the electrical connector from the MAP sensor (see illustration).
10.6 Slide the release lock (1) away from the MAP sensor (toward the harness), then depress the release tab (2) and pull off the connector (Hemi engine)
7. Remove the MAP sensor from the intake manifold (see illustration).
10.7 Rotate the MAP sensor 1/4-turn counterclockwise and pull it out of its mounting hole. Remove and inspect the MAP sensor 0-ring
8. Remove the old MAP sensor 0-ring and inspect it for cracks, tears and deterioration. If it’s damaged, replace it.
9. To install the MAP sensor, place it in position, insert it into the mounting hole in the intake manifold and turn it 1/4-turn clockwise.
10. Installation is otherwise the reverse of removal.
Diesel engine
Note: The MAP sensor is located on top of the intake manifold.
11. The MAP sensor is one-half of the dual-function Intake Air Temperature/Manifold Absolute Pressure (IAT/MAP) sensor. The replacement procedure is in Section Intake Air Temperature (IAT) sensor – replacement.