Cadillac STS 2006 Setup guide

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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.