Chevrolet Sonic Repair Manual: Crankshaft Balancer Replacement
Special Tools
- EN-470–B Angular Torque Wrench
- EN-49979 Crankshaft Shock Mount Retainer
For equivalent regional tools, refer to Special Tools.
- Removal Procedure
-
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove front wheelhouse liner extension right side. Refer to Front Wheelhouse
Liner Inner Front Extension Replacement.
- Remove the drive belt. Refer to Drive Belt Replacement.
- Place collecting basin underneath.
Note:
The crankshaft balancer can be incorrectly installed
180° from the required position. Be sure to note the location of the
alignment hole on the crankshaft balancer prior to removing the crankshaft
balancer from the engine.
- Rotate the engine clockwise until the bore (2) in the crankshaft balancer
aligns with the mark (1) on the engine front cover.
- Install EN-49979 crankshaft shock mount retainer (1) to suitable tool
(2).
- Loosen the crankshaft balancer bolt (4) while holding the crankshaft
balancer (3).
- Remove and DISCARD the crankshaft balancer bolt (2).
- Remove the crankshaft balancer (1).
- Installation Procedure
-
Note:
The crankshaft balancer flange must fit to the hexagon
of the oil pump rotor (2) and to the two-flats of the crankshaft (1).
The TDC markings on crankshaft balancer and engine front cover must
match.
- Install the crankshaft balancer carefully by pressing into position.
- Measure the distance (a) between the crankshaft balancer (2) and the
mark on the engine front cover (1). The distance (a) should be 5.5 mm (0.21654 in)
.
Note:
Never re-use the crankshaft balancer bolt.
- Install a NEW crankshaft balancer bolt.
Caution:
Refer to Fastener Caution.
Caution:
Refer to Torque-to-Yield Fastener Caution.
- Tighten the crankshaft balancer bolt (4) to 150 N•m (111 lb ft) while
holding the crankshaft balancer (3) with EN-49979 crankshaft shock mount
retainer (1) and suitable tool (2). Use EN-470-B wrench .
- Tighten the crankshaft balancer bolt to an additional 60°
.
- Install the drive belt. Refer to Drive Belt Replacement.
- Install the front wheelhouse liner extension right side. Refer to Front
Wheelhouse Liner Inner Front Extension Replacement.
- Lower the vehicle.
- Check and correct engine oil level.
Special Tools
EN-652 Flywheel Holder
For equivalent regional tools, refer to Special Tools.
Install the EN-652 holder (1). Lock the flywheel (2) or the automatic
transmis ...
Note: The crankshaft position sensor system variation learn procedure
is required when the following service procedures have been performed, regardless
of whether DTC P0315 is set:
...
Other materials:
TPMS Malfunction Light
The TPMS will not function properly if one or more of the TPMS sensors are missing
or inoperable. When the system detects a malfunction, the low tire warning light
flashes for about one minute and then stays on for the remainder of the ignition
cycle. The malfunction light comes on at each ign ...
Sunroof Switch Replacement
Sunroof Switch Replacement
Callout
Component Name
Preliminary Procedure
Remove the dome lamp bezel. Refer to Dome Lamp Bezel Replacement.
1
Sunroof Switch
Procedure
Disconnect electrical conn ...
Exhaust Manifold Heat Shield Installation
Install the exhaust manifold heat shield (2).
Caution: Refer to Fastener Caution.
Install the 3 exhaust manifold heat shield bolts (1) and the washers and
tighten to 8 Y (71 lb in).
...
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