Throttle position sensor (tps)-4.7L v-8 engine. Idle air control (iac) motor-3.9/5.2/ 5.9L engines

Throttle position sensor (tps)-4.7L v-8 engine

REMOVAL

The TPS is located on the throttle body.

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

(2) Disconnect TPS electrical connector (Fig. 20).

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

23).

Fig. 22 Installation-3.9/5.2/5.9L Engines-Typical

1 - THROTTLE BODY

2 - THROTTLE POSITION SENSOR

3 - THROTTLE SHAFT

4 - SOCKET LOCATING TANGS

Fig. 23 TPS Mounting Bolts-4.7L V-8 Engine

1 - THROTTLE BODY

2 - TPS

3 - IAC MOTOR

4 - IAT SENSOR

5 - MOUNTING SCREWS

(4) Remove TPS from throttle body.

INSTALLATION

The throttle shaft end of throttle body slides into a socket in TPS (Fig. 24). The TPS must be installed so that it can be rotated a few degrees. If sensor will not rotate, install sensor with throttle shaft on other side of socket tangs. The TPS will be under slight tension when rotated.

Fig. 24 TPS Installation-4.7L V-8 Engine

1 - THROTTLE BODY

2 - LOCATING TANGS

3 - THROTTLE POSITION SENSOR

4 - SOCKET

5 - THROTTLE SHAFT

(1) Install TPS and two retaining bolts.

(2) Tighten bolts to 7 N*m (60 in. lbs.) torque.

(3) Manually operate throttle control lever by hand to check for any binding of TPS.

(4) Connect TPS electrical connector to TPS.

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

Idle air control (iac) motor-3.9/5.2/ 5.9L engines

The IAC motor is located on the back of the throttle body (Fig. 25).

REMOVAL

(1) Remove air duct at throttle body.

(2) Disconnect electrical connector from IAC motor.

(3) Remove two mounting bolts (screws) (Fig. 25).

(4) Remove IAC motor from throttle body.

INSTALLATION

(1) Install IAC motor to throttle body.

Fig. 25 Mounting Bolts (Screws)-IAC Motor-3.9/ 5.2/5.9L Engines

1 - MOUNTING SCREWS

2 - IDLE SPEED MOTOR

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

(3) Install electrical connector.

(4) Install air duct at throttle body.