Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Chevrolet Traverse FWD V6-3.6LFACTORY OEM SERVICE PROCEDURE
Timing Component Alignment Marks: Locations
Timing Chain Alignment Diagram
Camshaft Position Actuator Timing Marks
1 - Right Intake Camshaft Position Actuator Identifier
2 - Right Intake Camshaft Position Actuator Right Side Timing Mark- Triangle
3 - Left Intake Camshaft Position Actuator Left Side Timing Mark- Circle
4 - Left Intake Camshaft Position Actuator Identifier
5 - Exhaust Camshaft Position Actuator Identifier
6 - Exhaust Camshaft Position Actuator Right Side Timing Mark- Triangle
7 - Exhaust Camshaft Position Actuator Left Side Timing Mark- Circle
Stage One
1 - Left Intake Camshaft Position (CMP) Actuator Timing Mark- Circle
2 - Left Intake Secondary Camshaft Timing Drive Chain Timing Link
3 - Left Exhaust Secondary Camshaft Timing Drive Chain Timing Link
4 - Left Exhaust Camshaft Position (CMP) Actuator Timing Mark- Circle
5 - Left Secondary Camshaft Timing Drive Chain
6 - Primary Camshaft Drive Chain Timing Link for the Left Primary Camshaft Intermediate Drive Chain Sprocket
7 - Left Primary Camshaft Intermediate Drive Chain Sprocket Timing Mark for the Primary Camshaft Drive Chain
8 - Left Primary Camshaft Intermediate Drive Chain Sprocket
9 - Left Secondary Camshaft Timing Drive Chain Timing Link for the Left Primary Camshaft Intermediate Drive Chain Sprocket, behind hole in sprocket
10 - Left Primary Camshaft Intermediate Drive Chain Sprocket Timing Window for the Left Secondary Camshaft Timing Drive Chain Timing Link
11 - Primary Camshaft Drive Chain
12 - Primary Camshaft Drive Chain Timing Link for the Crankshaft Sprocket
13 - Crankshaft Sprocket Timing Mark
14 - Crankshaft Sprocket
15 - Right Primary Camshaft Intermediate Drive Chain Sprocket
16 - Primary Camshaft Drive Chain Timing Link for the Right Primary Camshaft Intermediate Drive Chain Sprocket
17 - Right Primary Camshaft Intermediate Drive Chain Sprocket Timing Mark
Stage Two
1 - Left Intake Camshaft Position (CMP) Actuator Timing Mark- Circle
2 - Left Intake Secondary Camshaft Timing Drive Chain Timing Link
3 - Left Exhaust Secondary Camshaft Timing Drive Chain Timing Link
4 - Left Exhaust Camshaft Position (CMP) Actuator Timing Mark- Circle
5 - Left Secondary Camshaft Timing Drive Chain
6 - Primary Camshaft Drive Chain Timing Link for the Left Primary Camshaft Intermediate Drive Chain Sprocket
7 - Left Primary Camshaft Intermediate Drive Chain Sprocket Timing Mark for the Primary Camshaft Drive Chain
8 - Left Primary Camshaft Intermediate Drive Chain Sprocket
9 - Left Secondary Camshaft Timing Drive Chain Timing Link for the Left Primary Camshaft Intermediate Drive Chain Sprocket, behind hole in sprocket
10 - Left Primary Camshaft Intermediate Drive Chain Sprocket Timing Window
11 - Primary Camshaft Drive Chain
12 - Primary Camshaft Drive Chain Timing Link for the Crankshaft Sprocket
13 - Crankshaft Sprocket Timing Mark
14 - Crankshaft Sprocket
15 - Right Primary Camshaft Intermediate Drive Chain Sprocket
16 - Primary Camshaft Drive Chain Timing Link for the Right Primary Camshaft Intermediate Drive Chain Sprocket
17 - Right Primary Camshaft Intermediate Drive Chain Sprocket Timing Mark for the Primary Camshaft Drive Chain
18 - Right Primary Camshaft Intermediate Drive Chain Sprocket Timing Mark/Window for the Right Secondary Camshaft Timing Drive Chain
19 - Right Secondary Camshaft Timing Drive Chain Timing Link for the Right Primary Camshaft Intermediate Drive Chain Sprocket
20 - Right Secondary Camshaft Timing Drive Chain
21 - Right Exhaust Camshaft Position (CMP) Actuator Timing Mark- Triangle
22 - Right Exhaust Secondary Camshaft Timing Drive Chain Timing Link
23 - Right Intake Secondary Camshaft Timing Drive Chain Timing Link
24 - Right Intake Camshaft Position (CMP) Actuator Timing Mark- Triangle
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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