Chevrolet Trax: Camshaft timing chain adjustment
Special Tools
- EN-952 Fixing Pin
- EN-953-A Fixing Tool
- EN-49977-100 Fixation Sensor Discs
For equivalent regional tools, refer to Special Tools.
- Remove the ignition coil. Refer to Ignition Coil Replacement .
- Remove the camshaft cover. Refer to Camshaft Cover Replacement.
- Remove the camshaft position actuator solenoid valves. Refer to Camshaft
Position Actuator Solenoid
Valve Replacement .
- Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner
Replacement (Trax) ,
Front Wheelhouse Liner Replacement (Encore) .
Fig. 245: Bore And Mark
- Rotate the engine clockwise until the bore (2) in the crankshaft
balancer aligns with the mark (1) on the
engine front cover.
Fig. 246: Crankshaft Bearing Cap Tie Plate Hole Plug And Seal Ring
- Remove the crankshaft bearing cap tie plate hole plug (2) and the seal
ring (1).
Fig. 247: Fixing Pin
CAUTION: To ensure proper crankshaft top dead center (TDC) alignment,
the
retention pin should fit easily through the bore in the crankshaft tie
plate and into the crankshaft. Binding of the retention pin could
affect proper engine timing.
- Install the EN-952 fixing pin (1) to hold the crankshaft in TDC
position.
Fig. 248: Intake Camshaft Sprocket Bolt And Wrench
- Loosen the intake camshaft sprocket bolt (2) while holding the hexagon
of the intake camshaft with a
wrench (1) until the camshaft position exciter wheel is clearly rotatable.
- Loosen the exhaust camshaft sprocket bolt while holding the hexagon of
the exhaust camshaft with a
wrench until the camshaft position exciter wheel is clearly rotatable.
Fig. 249: Fixing Tool
NOTE: The fixing tool should be installed completely to both
camshaft grooves
without high effort.
- Adjust the camshafts so that the EN-953-A fixing tool (1) can be
installed.
Fig. 250: Upper Timing Chain Guide And Bolts
- Remove the 2 upper timing chain guide bolts (1).
- Remove the upper timing chain guide (2).
Fig. 251: Intake Camshaft Sprocket Gearing And Special Tool
NOTE: Push the fixing tool in the direction of the arrow to ensure
it engages
without clearance.
- Install the EN-49977-200 fixing tool (2) and adjust the gearing of the
fixing tool so it engages with the
intake camshaft sprocket gearing (1).
Fig. 252: Adjuster Bolt And Fastening Bolts
- Tighten the 2 fastening bolts (1) of the EN-49977-200 fixing tool while
pushing the fixing tool in
direction of the arrow.
- Tighten the adjuster bolt (2).
Fig. 253: Fastening Bolts And Fixation Tool
NOTE: A wrong installation position is possible. Make sure that the
fixation tool is
installed without clearance to the cylinder head in areas (3) and (5).
- Install the EN-49977-100 fixation (2) to find and hold the camshaft
position exciter wheels in the correct
position.
- Tighten the 2 fastening bolts (6) of the EN-49977-100 fixation.
CAUTION: Refer to Fastener Caution .
- Tighten the intake camshaft sprocket bolt (4) while holding the hexagon
(1) of the intake camshaft to 50
N.m (37 lb ft).
- Tighten the intake camshaft sprocket bolt (4) while holding the hexagon
(1) of the intake camshaft an
additional 60º.
- Tighten the exhaust camshaft sprocket bolt while holding the hexagon of
the exhaust camshaft to 50 N.m
(37 lb ft).
- Tighten the exhaust camshaft sprocket bolt while holding the hexagon of
the exhaust camshaft an additional 60º.
- Remove the EN-49977-100 fixation and the EN-49977-200 fixing tool.
Fig. 254: Upper Timing Chain Guide And Bolts
- Install the upper timing chain guide (2).
- Install the 2 upper timing chain guide bolts (1) and tighten to 8 N.m
(71 lb in).
- Remove the EN-953-A fixing tool.
- Remove the EN-952 fixing pin.
- Rotate the crankshaft for 720º and check the engine timing again. Repeat
the adjustment procedure if
necessary.
- Install the crankshaft bearing cap tie plate hole plug and seal ring and
tighten to 40 N.m (30 lb ft).
- Install the right front wheelhouse liner. Refer to Front Wheelhouse
Liner Replacement (Trax) , Front
Wheelhouse Liner Replacement (Encore)
- Install the camshaft position actuator solenoid valves. Refer to
Camshaft Position Actuator Solenoid
Valve Replacement .
- Install the camshaft cover. Refer to Camshaft Cover Replacement.
- Install the ignition coil. Refer to Ignition Coil Replacement .
READ NEXT:
Fig. 255: Engine Oil Filter Element, Cap And Seal Ring
Remove the engine oil filter cap (2) along with the engine oil filter
cap seal ring (3) and the oil filter
element (1).
Remove the oil pa
Special Tool
EN-49942 Holding Wrench
For equivalent regional tools, refer to Special Tools.
Fig. 261: Holding Wrench And Ratchet Wrench
Install the EN-49942 holding wrench (2) to the turbocharger
Special Tools
EN-952 Fixing Pin
EN-953-A Fixing Tool
EN-955-10 Fixing Pin from EN-955 Kit
For equivalent regional tools, refer to Special Tools.
The engine should be adjusted to TDC.
The crank
SEE MORE:
Removal Procedure
WARNING: Refer to Approved Equipment for Collision Repair Warning .
Disable the SIR system. Refer to SIR Disabling and Enabling .
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and
Connection .
Remove all related panels and components.
Fig. 15: Drive Range, Fifth Gear -- Gen 2/Hybrid Fluid Flow Diagram
Drive Range, Sixth Gear (Gen 2/Hybrid)
As vehicle speed increases, the transmission control module (TCM) processes
input signals from the automatic
transmission input and output speed sensors, the throttle position sensor and
ot