Removal & Installation
3.3L & 3.8L Engines
- Before servicing the vehicle, refer to the Precautions Section.
- Disconnect the negative cable from the battery.
- Remove the timing chain cover. Refer to Timing Chain Cover and Seal, removal & installation.
Rotate the engine by turning the crankshaft until the timing marks are aligned (4).
- Remove the camshaft sprocket attaching bolt.
- Remove the timing chain with the camshaft sprocket.
Using Special Tools 8539, 5048-6, and 5048-1, remove the crankshaft sprocket (4) while holding the crankshaft from turning. Be careful not to damage the crankshaft surfaces.
- Position the crankshaft sprocket on the crankshaft (timing mark out) with the timing slot aligned with the timing pin.
Install the crankshaft sprocket using Special Tool 8452 (1). Press in the crankshaft sprocket (3) until it fully seats on the crankshaft.
Rotate the crankshaft so the timing arrow is to the 12 o'clock position (4).
NOTELubricate the timing chain and sprockets with clean engine oil before installation.
- While holding the camshaft sprocket and the chain in hand, place the timing chain around the sprocket, aligning the plated link with the dot on the sprocket. Position the timing arrow to the 6 o'clock position (4).
- Place the timing chain around the crankshaft sprocket with the plated link lined up with the dot on the sprocket. Install the camshaft sprocket into position.
- Use a straight edge to check the alignment of the timing marks.
- Install the camshaft sprocket bolt and washer. Tighten the bolt to 40 ft. lbs. (54 Nm).
- Rotate the crankshaft 2 revolutions and check the timing mark alignment (4). If the timing marks do not line up, remove the camshaft sprocket and realign.
- Install the timing chain cover. Refer to Timing Chain Cover and Seal, removal & installation.
- Connect the negative battery cable. Tighten the nut to 40 inch lbs. (5 Nm).