Dodge Ram Truck 1500-2500-3500. Manual — part 354

4.7L V-8

The Camshaft Position Sensor (CMP) (2) on the 4.7L
V–8 engine is bolted to the front/top of the right cylin-
der head.

1. Raise and support vehicle.

2. Disconnect electrical connector at CMP sensor.

3. Remove sensor mounting bolt (3).

4. Carefully twist sensor from cylinder head.

5. Check condition of sensor o-ring.

5.7L V-8

The Camshaft Position Sensor (CMP) (2) on the 5.7L
V-8 engine is located on right side of timing chain
cover below generator (1).

1. Disconnect electrical connector (3) at CMP sensor.

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2. Remove sensor mounting bolt (3).

3. Carefully twist sensor from cylinder head.

4. Check condition of sensor o-ring.

5.9L Diesel

The Camshaft Position Sensor (CMP) on the 5.9L die-
sel engine is located below the fuel injection pump (1).
It is bolted to the back of the timing gear cover.

1. Disconnect electrical connector (5) at CMP sensor.

2. Remove sensor mounting bolt (6).

3. Carefully twist sensor from timing gear cover.

4. Check condition of sensor o-ring.

8.3L - REPLACING WITH NEW SENSOR

The camshaft position sensor is located on the timing chain case above the water pump and under the throttle body.

If a new replacement camshaft position sensor is to be installed, use this procedure.

1. Disconnect the sensor wiring harness connector from sensor.

2. Remove the sensor mounting bolt.

3. Carefully pry the sensor from the timing chain case/cover in a rocking action with two small screwdrivers.

4. Remove the sensor from vehicle.

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8.3 L - REPLACING OLD SENSOR WITH ORIGINAL

The camshaft position sensor is located on the timing chain case above the water pump and under the throttle body.

If the original camshaft position sensor is to be removed and installed, such as when servicing the timing chain,
timing gears or timing chain cover, use this procedure.

1. Disconnect the sensor harness connector from the sensor.

2. Scribe the sensor for location depth.

3. Remove the sensor mounting bolt.

4. Carefully pry the sensor from the timing chain case/cover in a rocking action with two small screwdrivers.

5. Remove the sensor from vehicle.

6. Check condition of sensor o-ring.

INSTALLATION

INSTALLATION

3.7L V-6

The Camshaft Position Sensor (CMP) on the 3.7L V-6
engine is bolted to the front/top of the right cylinder
head.

1. Clean out machined hole in cylinder head.

2. Apply a small amount of engine oil to sensor

o-ring.

3. Install sensor into cylinder head with a slight rock-

ing and twisting action.

CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder head. If
sensor is not flush, damage to sensor mounting tang may result.

4. Install mounting bolt and tighten. Refer to torque specifications.

5. Connect electrical connector to sensor.

4.7L V-8

The Camshaft Position Sensor (CMP) on the 4.7L V-8 engine is bolted to the front/top of the right cylinder head.

1. Clean out machined hole in cylinder head.

2. Apply a small amount of engine oil to sensor o-ring.

3. Install sensor into cylinder head with a slight rocking action. Do not twist sensor into position as damage to o-ring

may result.

CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to cylinder head. If
sensor is not flush, damage to sensor mounting tang may result.

4. Install mounting bolt and tighten. Refer to Torque Specifications.

5. Connect electrical connector to sensor.

5.7L V-8

The Camshaft Position Sensor (CMP) on the 5.7L V-8 engine is bolted to the right / front side of the timing chain
cover or.

1. Clean out machined hole in cylinder head.

2. Apply a small amount of engine oil to sensor o-ring.

3. Install sensor into cylinder head with a slight rocking action. Do not twist sensor into position as damage to o-ring

may result.

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CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to timing chain cover.
If sensor is not flush, damage to sensor mounting tang may result.

4. Install mounting bolt and tighten. Refer to Torque Specifications.

5. Connect electrical connector to sensor.

5.9L Diesel

The CMP is located on the back of the timing gear cover.

1. Clean out machined hole in back of timing gear cover.

2. Apply a small amount of engine oil to sensor o-ring.

3. Install sensor into timing gear cover with a slight rocking action. Do not twist sensor into position as damage to

o-ring may result.

CAUTION: Before tightening sensor mounting bolt, be sure sensor is completely flush to back of timing
chain cover. If sensor is not flush, damage to sensor mounting tang may result.

4. Install mounting bolt and tighten. Refer to Torque Specifications.

5. Connect electrical connector to sensor.

8.3L - INSTALLATION - WITH NEW SENSOR

The camshaft position sensor is located on the timing chain case above the water pump and under the throttle body.

1. Apply a small amount of engine oil to the sensor o-ring.

A low (step down) and high (step up) area are machined into the camshaft drive gear. The sensor is positioned in
the timing gear cover so that a small air gap exists between the face of sensor and the high machined area of cam
gear.

Before the sensor is installed, the cam gear may have to be rotated. This is to allow the high machined area (step
up) on the gear to be directly in front of the sensor mounting hole opening on the timing gear cover.

Do not install sensor with gear positioned at low area. When the engine is started, the sensor will be bro-
ken.

2. Using a 1/2 in. wide metal ruler, measure the distance from the cam gear to the face of the sensor mounting hole

opening on the timing gear cover.

3. If the dimension is approximately 1–15/32 inches or less, it is OK to install sensor.

4. If the dimension is approximately 1–5/8 inches or more, the cam gear will have to be rotated.

5. Attach a socket to the vibration damper mounting bolt and rotate engine until the 1–15/32 inch dimension is

attained.

6. Install the sensor into the timing case/cover with a slight rocking action. Do not twist the sensor into position as

damage to the o-ring may result. Push the sensor all the way into the cover until the rib material on the sensor
contacts the camshaft gear.

7. Install the mounting bolt and tighten to 10.7 N·m (95 in. lbs.) torque.

8. Connect sensor wiring harness to engine harness.

When the engine is started, the rib material will be sheared off the face of sensor. This will automatically set sensor
air gap.

8.3L - REPLACING OLD SENSOR WITH ORIGINAL

The camshaft position sensor is located on the timing chain case above the water pump and under the throttle body.

When installing a used camshaft position sensor, the sensor depth must be adjusted to prevent contact with the
camshaft gear (sprocket).

1. Apply a small amount of engine oil to the sensor o-ring.

A low and high area are machined into the camshaft drive gear. The sensor is positioned in the timing gear cover
so that a small air gap exists between the face of sensor and the high machined area of cam gear.

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