Idle air control (iac) motor-4.7L v-8 engine. Manifold absolute pressure (map) sensor-3.9/5.2/5.9L engines

Idle air control (iac) motor-4.7L v-8 engine

The IAC motor is located on the throttle body.

REMOVAL

(1) Remove air duct and air resonator box at throttle body.

(2) Disconnect electrical connector from IAC motor (Fig. 20).

(3) Remove two mounting bolts (screws) (Fig. 21).

(4) Remove IAC motor from throttle body.

INSTALLATION

(1) Install IAC motor to throttle body.

(2) Install and tighten two mounting bolts (screws) to 7 N*m (60 in. lbs.) torque.

(3) Install electrical connector.

(4) Install air duct/air box to throttle body.

Manifold absolute pressure (map) sensor-3.9/5.2/5.9L engines

The MAP sensor is located on the front of the throttle body (Fig. 26). An L-shaped rubber fitting is used to connect the MAP sensor to throttle body (Fig.

27).

REMOVAL

(1) Remove air duct at throttle body.

(2) Remove two MAP sensor mounting bolts (screws) (Fig. 26).

Fig. 26 MAP Sensor Location-3.9/5.2/5.9L Engines

1 - MAP SENSOR

2 - MOUNTING SCREWS (2)

Fig. 27 MAP Sensor L-Shaped Rubber Fitting-3.9/ 5.2/5.9L Engines

1 - MAP SENSOR

2 - RUBBER FITTING

3 - IDLE AIR PASSAGE

(3) While removing MAP sensor, slide the vacuum rubber L-shaped fitting (Fig. 27) from the throttle body.

(4) Remove rubber L-shaped fitting from MAP sensor.

INSTALLATION

(1) Install rubber L-shaped fitting to MAP sensor.

(2) Position sensor to throttle body while guiding rubber fitting over throttle body vacuum nipple.

(3) Install MAP sensor mounting bolts (screws).

Tighten screws to 3 N*m (25 in. lbs.) torque.

(4) Install air duct at throttle body.