GM Service Manual Online
For 1990-2009 cars only

Camshaft Timing Drive Chain Alignment Diagram First Design

Figure 1:

Camshaft Position Actuator Timing Marks


Object Number: 1578923  Size: MF
(1)Intake Camshaft Position Actuator Left Side Timing Mark - Circle
(2)Intake Camshaft Position Actuator Right Side Timing Mark - Triangle
(3)Intake Camshaft Position Actuator Identifier
(4)Exhaust Camshaft Position Actuator Identifier
(5)Exhaust Camshaft Position Actuator Right Side Timing Mark - Triangle
(6)Exhaust Camshaft Position Actuator Left Side Timing Mark - Circle
Figure 2:

Stage One


Object Number: 945254  Size: LF
(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
(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
Figure 3:

Stage Two


Object Number: 945269  Size: LF
(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
(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