Cadillac STS 2006 Einrichtungshandbuch

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ON-VEHICLE REPAIR INSTRUCTIONS > CAMSHAFT REPLACEMENT - LEFT SIDE >

TOOLS REQUIRED

EN 46108 Timing Chain Retention Tool. See Special Tools .

ON-VEHICLE REPAIR INSTRUCTIONS > CAMSHAFT REPLACEMENT - LEFT SIDE >

REMOVAL PROCEDURE

1. Remove the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold

Replacement .

2. Remove the left bank camshaft cover. Refer to Camshaft Cover Replacement - Left Side .

3. Remove the camshaft sensors. Refer to Camshaft Position Sensor Replacement - Bank 2 (Left

Side) Exhaust and Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake .

4. Remove the camshaft position actuator solenoid. Refer to Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 2 (Left Side) Intake .

ENGINE MECHANICAL - 3.6L (1 OF 5)

2006 Cadillac STS 3.6L Eng Base

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IMPORTANT: Rotate the crankshaft

balancer in a clockwise rotation ONLY.

5. Rotate the crankshaft using the crankshaft balancer bolt until the camshafts are in a neutral (low

tension) position. The camshaft flats will be parallel with the camshaft cover rail (1).

Fig 1: Camshaft Flats Parallel With Camshaft Cover Rail

Courtesy of GENERAL MOTORS CORP.

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NOTE: Refer to Torque Reaction Against

Timing Drive Chain Notice .

IMPORTANT:

1. Use an open-end wrench at the

camshaft hex to prevent

camshaft/engine rotation.

2. DO NOT remove the camshaft

position actuator bolt at this time.

6. Loosen the camshaft position actuator bolt.

Fig 2: Preventing Camshaft/Engine Rotation Using Open-End Wrench

Courtesy of GENERAL MOTORS CORP.

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IMPORTANT: Ensure that the tips of the EN

46108 are fully engaged into the timing chain (3

and 4). See Special Tools .

7. Install the EN 46108 (1 and 2) in order to retain the timing chain. See Special Tools .

Firmly tighten the EN 46108 nuts. See Special Tools .

Fig 3: Identifying EN 46108

Courtesy of GENERAL MOTORS CORP.

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IMPORTANT: Ensure that the camshaft

timing chain and the camshaft position actuators

are marked for proper assembly.

8. Mark the timing chain and the respective locations on the camshaft position actuators (1-4).

9. Remove the camshaft position actuator bolt.

10. Remove the camshafts. Refer to Camshaft Removal - Left Side .

ON-VEHICLE REPAIR INSTRUCTIONS > CAMSHAFT REPLACEMENT - LEFT SIDE >

INSTALLATION PROCEDURE

Fig 4: Locating Left Secondary Camshaft Drive Chain Timing Marks

Courtesy of GENERAL MOTORS CORP.

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IMPORTANT:

1. Ensure that the marks on the

camshaft position actuator and the

timing chain (1-4) are aligned.

2. DO NOT tighten the camshaft position

actuator bolt at this time.

1. Locate the camshafts to the cylinder head and assemble the camshaft actuators to the camshafts.

2. Install the camshafts and the camshaft bearing caps. Refer to Camshaft Installation - Left Side .

3. Remove the EN 46108 . See Special Tools .

Fig 1: Locating Left Secondary Camshaft Drive Chain Timing Marks

Courtesy of GENERAL MOTORS CORP.

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NOTE: Refer to Torque Reaction Against

Timing Drive Chain Notice .

IMPORTANT: Use an open-end wrench at

the camshaft hex to prevent camshaft/engine

rotation.

4. Install and tighten the camshaft position actuators. Refer to Camshaft Position Actuator

Installation - Left Side Intake (Second Design) and Camshaft Position Actuator Installation - Left

Side Exhaust (Second Design) .

5. Install the intake camshaft position actuator solenoid. Refer to Camshaft Position Actuator

Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake .

6. Install the camshaft sensors. Refer to Camshaft Position Sensor Replacement - Bank 2 (Left Side)

Fig 2: Preventing Camshaft/Engine Rotation Using Open-End Wrench

Courtesy of GENERAL MOTORS CORP.

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Exhaust and Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake .

7. Install the camshaft cover. Refer to Camshaft Cover Replacement - Left Side .

8. Install the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold

Replacement .

ON-VEHICLE REPAIR INSTRUCTIONS > CAMSHAFT REPLACEMENT - RIGHT SIDE >

TOOLS REQUIRED

EN 46108 Timing Chain Retention Tool. See Special Tools .

ON-VEHICLE REPAIR INSTRUCTIONS > CAMSHAFT REPLACEMENT - RIGHT SIDE >

REMOVAL PROCEDURE

1. Remove the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold

Replacement .

2. Remove the camshaft cover. Refer to Camshaft Cover Replacement - Right Side .

3. Remove the camshaft sensors. Refer to Camshaft Position Sensor Replacement - Bank 1 (Right

Side) Exhaust and Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake .

4. Remove the intake camshaft position actuator solenoid. Refer to Camshaft Position Actuator

Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake .

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IMPORTANT: Rotate the crankshaft

balancer in a clockwise rotation ONLY.

5. Rotate the crankshaft using the crankshaft balancer bolt until the camshafts are in a neutral (low

tension) position. The camshaft flats will be parallel with the camshaft cover rail (1).

Fig 1: Identifying Camshaft Neutral (Low Tension) Position

Courtesy of GENERAL MOTORS CORP.

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NOTE: Refer to Torque Reaction Against

Timing Drive Chain Notice .

IMPORTANT:

1. Use an open-end wrench at the

camshaft hex to prevent

camshaft/engine rotation.

2. DO NOT remove the camshaft

position actuator bolt at this time.

6. Loosen the camshaft position actuator bolt.

Fig 2: Preventing Camshaft/Engine Rotation Using Open-End Wrench

Courtesy of GENERAL MOTORS CORP.

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