- Use a wrench in order to align the camshaft timing marks.
Be sure to place the wrench on the hexagonal portion of the camshafts.
- Turn the camshafts in order to align the timing marks.
- Temporarily install the crankshaft bolt.
- Turn the crankshaft until the crankshaft keyway (1) faces upward.
- Install the following components:
• | Install the timing chain on the crankshaft timing sprocket with the yellow color link aligned with the mark on the crankshaft timing sprocket. |
• | The crankshaft timing sprocket |
Notice: Refer to Fastener Notice in the Preface section.
- Install the timing chain shoe. Secure the timing chain shoe using 2 bolts (1, 2).
Tighten
Tighten the timing chain shoe bolts to 10 N·m (89 lb in).
- Install the timing chain (1) onto the exhaust camshaft sprocket (4) and the intake camshaft
sprockets (5).
Ensure that the yellow timing chain links (2) are aligned with the timing marks (3), (6). The intake cam phaser mark (7) should be at the 9 o'clock position and the "Ex" timing mark (8)
on the exhaust camshaft sprocket (4) should be at the 3 o'clock position. The colored links (2) will line up around the 12 o'clock position with the double dots (3) on the exhaust sprocket and the line (6) on the cam phaser body.
- Install the timing chain dampener. Secure the timing chain dampener using 1 bolt (1).
Tighten
Tighten the timing chain dampener bolt to 18 N·m (14 lb ft).
- Install the crankshaft sensor reluctor (1) onto the crankshaft. Insure that the F on the reluctor is facing outward.
- Unlock the intake camshaft actuator locking pin. Refer to
Camshaft Position Actuator Locking Pin Adjustment
.
- Apply a continuous bead of GM P/N 12346240 (Canadian P/N 10953493) or an equivalent to the timing chain cover mating surface.
- Install the timing chain cover water pump and o-ring.
Install the following fasteners and uniformly tighten the bolts
and nuts in several steps in order to secure the cover:
Tighten
• | Tighten the timing chain cover bolts (1) (25 mm (0.98 in) length) to 13 N·m (10 lb in).
|
• | Tighten the timing chain cover bolts (3) (35 mm (1.38 in) length) to 11 N·m (8 lb ft).
|
• | Tighten the timing chain cover bolts (4) (30 mm (0.79 in) length) to 9 N·m (80 lb in).
|
• | Tighten the timing chain cover bolts (5) (45 mm (1.77 in) length) to 19 N·m (14 lb ft).
|
• | Tighten the timing chain cover nuts (1) to 10 N·m (89 lb in).
|
- Use the following steps in order to install the timing chain tensioner:
13.1. | Fully depress the plunger (4). |
13.2. | Apply the hook (2) to the pin (3). |
13.3. | Install the timing chain tensioner. |
- Install the timing chain tensioner. Secure the timing chain tensioner using 2 bolts (1).
Tighten
Tighten the timing chain tensioner bolts to 10 N·m (89 lb in).
- Install the right side engine mounting bracket. Secure the bracket using 3 bolts.
Tighten
Tighten the engine mounting bracket bolts to 54 N·m (40 lb ft).
- Install the drive belt tensioner. Secure the tensioner using 1 bolt and one nut.
Tighten
• | Tighten the bolt to 69 N·m (51 lb ft). |
• | Tighten the nut to 29 N·m (21 lb ft). |
- Raise the vehicle. Support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
- Install the crankshaft position sensor. Secure the sensor using 1 bolt (5).
Tighten
Tighten the crankshaft position sensor bolt to 12 N·m (106 lb in).
- Install the crankshaft pulley. Secure the crankshaft pulley using 1 bolt.
Tighten
Tighten the crankshaft pulley to 142 N·m (105 lb ft).
- Install the power steering pump.
- Use the following fasteners in order to secure the power steering pump:
Tighten
Tighten the power steering pump bolts to 37 N·m (27 lb ft).
- Install the right engine splash shield. Refer to
Engine Splash Shield Replacement - Left Side
.
- Lower the vehicle.
- Connect the power steering oil pressure switch connector.
- Rotate the crankshaft clockwise 1 revolution. Ensure that the plunger on the timing chain tensioner has released.
Complete the following steps
if the plunger does not release:
• | Use a screwdriver or your finger in order to press the timing chain dampener into the timing chain tensioner. |
• | Release the hook from the pin. |
• | Verify proper timing chain alignment after the plunger has released. |
- Install the cylinder head cover.
- Install the engine mount. Refer to
Engine Mount Replacement
.
- Remove the engine support fixture.
- Install the generator. Refer to
Generator Replacement
.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
.
- Connect the negative battery cable.
Tighten
Tighten the battery cable bolt to 15 N·m (11 lb ft).