Chevrolet Sonic Repair Manual: Timing Belt Inspection

Chevrolet Sonic Repair Manual / Powertrain / Engine / Valvetrain / Valvetrain Timing / Timing Belt Inspection

Special Tools

EN-6340 Locking Tool
EN-6628-A Locking Tool

For equivalent regional tools, refer to Special Tools.

Removal Procedure

Remove the timing belt upper front cover. Refer to Timing Belt Upper Front Cover Removal.

Set the crankshaft balancer in the direction of the engine rotation to "1st cylinder TDC" (mark 1).
Remove the camshaft cover. Refer to Camshaft Cover Removal.

Note:

The right half of the EN-6340 locking tool can be recognized by the lettering “right?E arrow, on the tool.

Prepare the right half of the EN-6340 locking tool .

Remove the 2 bolts (2).
Remove the front panel (1) from the EN-6340 locking tool -right.

Note:

The spot type marking (4) on the intake camshaft position actuator adjuster does not correspond to the groove of the EN-6340 locking tool - left (1) during this process, but must be somewhat above.
The spot type marking (3) on the exhaust camshaft position actuator adjuster must correspond to the groove on EN-6340 locking tool - right (2).

Insert the EN-6340 locking tool - left (1) and the EN-6340 locking tool - right (2) in the camshaft position actuator adjuster.

Note:

If the EN-6628-A locking tool cannot be inserted, the timing must be set.

Align the camshafts horizontally by the hexagon (arrows) until the EN-6628-A locking tool can be inserted in both camshafts.

Insert the EN-6628-A locking tool (1) into the camshafts.

Installation Procedure

Remove the EN-6628-A locking tool .
Remove the EN-6340 locking tool .
Install the camshaft cover. Refer to Camshaft Cover Installation.
Install the timing belt upper front cover. Refer to Timing Belt Upper Front Cover Installation.

Timing Belt Center Front Cover Replacement

Timing Belt Center Front Cover Replacement Callout Component Name Preliminary Procedure Remove the timing belt upper front cover. R ...

Timing Belt Installation

Special Tools EN-6333 Locking Pin EN-6340 Locking Tool For equivalent regional tools, refer to Special Tools. Note: The timing belt drive gear and oil pump housing must align. ...

Other materials:

Door Locks
Warning Unlocked doors can be dangerous. Passengers, especially children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open it. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked. S ...

Rear Side Door Weatherstrip Replacement - Body Side
Rear Side Door Weatherstrip Replacement - Body Side Callout Component Name Preliminary Procedures Remove the upper center pillar trim. Refer to Center Pillar Upper Trim Panel Replacement. Remove the lower center pillar tr ...

Knock Sensor System Description
Circuit/System Description The knock sensor system enables the engine control module (ECM) to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The ECM uses the knock sensor system to test for ...

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