Component Location Graphics

NOTE: Figures may show multiple component locations. Refer to appropriate table for proper figure references.

Fig 1: Lower Left Radiator Support

Courtesy of GENERAL MOTORS CORP.

Fig 2: Lower Right Side Of Engine (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Rear Of Engine (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 4: Rear Of Engine (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 5: Lower Left Side Of Engine (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 6: Lower Right Side Of Engine (6.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 7: Lower Left Side Of Engine (6.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 8: Lower Left Front Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 9: Top Rear Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 10: Right Rear Of Engine Compartment (Hybrid)

Courtesy of GENERAL MOTORS CORP.

Fig 11: Left Rear Of Engine (Hybrid)

Courtesy of GENERAL MOTORS CORP.

Fig 12: Left Front Of Engine (Hybrid)

Courtesy of GENERAL MOTORS CORP.

Fig 13: Right Side Of Instrument Panel

Courtesy of GENERAL MOTORS CORP.

Fig 14: Top Left Side Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 15: Left Front Body Mount

Courtesy of GENERAL MOTORS CORP.

Fig 16: Top Of Fuel Tank (W/Heavy Duty)

Courtesy of GENERAL MOTORS CORP.

Fig 17: Left Frame Rail

Courtesy of GENERAL MOTORS CORP.

Fig 18: Right "B" Pillar

Courtesy of GENERAL MOTORS CORP.

Fig 19: Left "B" Pillar (Crew Cab)

Courtesy of GENERAL MOTORS CORP.

Fig 20: Energy Storage Box Components (Hybrid)

Courtesy of GENERAL MOTORS CORP.

Fig 21: Top Rear Of Frame

Courtesy of GENERAL MOTORS CORP.

Fig 22: Right Rear Of Frame

Courtesy of GENERAL MOTORS CORP.

Fig 23: Underhood Fuse Block

Courtesy of GENERAL MOTORS CORP.

Fig 24: Underhood Fuse Block (Secondary)

Courtesy of GENERAL MOTORS CORP.

Fig 25: Instrument Panel Fuse Block

Courtesy of GENERAL MOTORS CORP.

Fig 26: Instrument Panel Fuse Block (Bottom View)

Courtesy of GENERAL MOTORS CORP.

Fig 27: Relay Block

Courtesy of GENERAL MOTORS CORP.

Fig 28: Right Rear Of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Fig 29: A/C Compressor (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 30: A/C Compressor (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 31: A/C High Pressure Line

Courtesy of GENERAL MOTORS CORP.

Fig 32: Right Side Of Grille

Courtesy of GENERAL MOTORS CORP.

Fig 33: HVAC Control Module

Courtesy of GENERAL MOTORS CORP.

Fig 34: HVAC Module Assembly

Courtesy of GENERAL MOTORS CORP.

Fig 35: HVAC Module Assembly (Bottom)

Courtesy of GENERAL MOTORS CORP.

Fig 36: Air Temperature Sensors

Courtesy of GENERAL MOTORS CORP.

Fig 37: Air Temperature Sensor (Lower Left)

Courtesy of GENERAL MOTORS CORP.

Fig 38: Air Temperature Sensor (Lower Right)

Courtesy of GENERAL MOTORS CORP.

Fig 39: Sunload Sensor Assembly

Courtesy of GENERAL MOTORS CORP.

Fig 40: Steering Column

Courtesy of GENERAL MOTORS CORP.

Fig 41: Rear Wheel Steering Control Module

Courtesy of GENERAL MOTORS CORP.

Fig 42: Rear Steering Gear Motor

Courtesy of GENERAL MOTORS CORP.

Fig 43: Rear Wheel Position Sensor

Courtesy of GENERAL MOTORS CORP.

Fig 44: Transfer Case (NVG 261)

Courtesy of GENERAL MOTORS CORP.

Fig 45: Front Drive Axle (2500 Series)

Courtesy of GENERAL MOTORS CORP.

Fig 46: Front Drive Axle (1500 Series)

Courtesy of GENERAL MOTORS CORP.

Fig 47: Transfer Case Shift Control Module

Courtesy of GENERAL MOTORS CORP.

Fig 48: Transfer Case

Courtesy of GENERAL MOTORS CORP.

Fig 49: Front Drive Axle Harness

Courtesy of GENERAL MOTORS CORP.

Fig 50: Transfer Case Encoder Motor

Courtesy of GENERAL MOTORS CORP.

Fig 51: Stop Lamp Switch

Courtesy of GENERAL MOTORS CORP.

Fig 52: Brake Fluid Level Switch

Courtesy of GENERAL MOTORS CORP.

Fig 53: Supplemental Brake Assist Pump

Courtesy of GENERAL MOTORS CORP.

Fig 54: Wheel Speed Sensor (Right Front) (2WD)

Courtesy of GENERAL MOTORS CORP.

Fig 55: Wheel Speed Sensor (Right Front) (4WD)

Courtesy of GENERAL MOTORS CORP.

Fig 56: Left Front Of Engine (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 57: Top Right Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 58: Engine Coolant Temperature (ECT) Sensor (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 59: Lower Right Front Of Engine (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 60: Generators (6.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 61: Auxiliary Battery

Courtesy of GENERAL MOTORS CORP.

Fig 62: Left Side Of Engine (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 63: EVAP Canister Vent Solenoid

Courtesy of GENERAL MOTORS CORP.

Fig 64: Right Valve Cover (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 65: Top Rear Of Engine (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 66: Knock Sensors (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 67: Crankshaft Position (CKP) Sensor (4.8L, 5.3L & 6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 68: Throttle Actuator Control (TAC) Module

Courtesy of GENERAL MOTORS CORP.

Fig 69: Air Induction Components

Courtesy of GENERAL MOTORS CORP.

Fig 70: Heated Oxygen (HO2S) Sensors (4.8L & 5.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 71: Heated Oxygen (HO2S) Sensors (6.0L)

Courtesy of GENERAL MOTORS CORP.

Fig 72: Powertrain Control Module (PCM)

Courtesy of GENERAL MOTORS CORP.

Fig 73: Left Front Of Engine (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 74: Right Rear Of Engine Compartment (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 75: Barometric Pressure (Baro) Sensor (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 76: Boost Sensor (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 77: Crankshaft Sensor (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 78: Camshaft Sensor (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 79: Engine Coolant Temperature (ECT) Sensor (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 80: Accelerator Pedal Position (APP) Sensor

Courtesy of GENERAL MOTORS CORP.

Fig 81: Fuel Injector Control Module (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 82: Fuel Pump (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 83: Engine Control Module (6.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 84: Water In Fuel Sensor (6.6L)

Courtesy of GENERAL MOTORS CORP.

Fig 85: Fuel Injection System Components (6.6L) (LB7)

Courtesy of GENERAL MOTORS CORP.

Fig 86: EVAP Canister Purge Solenoid

Courtesy of GENERAL MOTORS CORP.

Fig 87: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 88: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 89: Automatic Transmission (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 90: Rear Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 91: Fuel Pump Relay-Secondary (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 92: Upper Left Side Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 93: Camshaft Position (CMP) Sensor (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 94: Upper Right Side Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 95: Lower Right Side Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 96: Lower Left Side Of Engine (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 97: Accelerator Pedal Position (APP) Sensor (8.1L)

Courtesy of GENERAL MOTORS CORP.

Fig 98: Manual Transmission (NV 3500)

Courtesy of GENERAL MOTORS CORP.

Fig 99: Clutch Start Switch

Courtesy of GENERAL MOTORS CORP.

Fig 100: Manual Transmission (NV 4500)

Courtesy of GENERAL MOTORS CORP.

Fig 101: Manual Transmission (ZF S6-650)

Courtesy of GENERAL MOTORS CORP.

Fig 102: Lower Steering Column

Courtesy of GENERAL MOTORS CORP.

Fig 103: Transmission Components (4L60-E)

Courtesy of GENERAL MOTORS CORP.

Fig 104: Below Right Front Seat

Courtesy of GENERAL MOTORS CORP.

Fig 105: Radiator Support

Courtesy of GENERAL MOTORS CORP.

Fig 106: Behind Right Side Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 107: Left Side Of Roof

Courtesy of GENERAL MOTORS CORP.

Fig 108: Overhead Console

Courtesy of GENERAL MOTORS CORP.

Fig 109: Left Side Of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Fig 110: Behind Left Side Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 111: Behind Right Side Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 112: Behind Right Side Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 113: Power Take-Off Relay

Courtesy of GENERAL MOTORS CORP.

Fig 114: Upper Steering Column

Courtesy of GENERAL MOTORS CORP.

Fig 115: Body Control Module

Courtesy of GENERAL MOTORS CORP.

Fig 116: Lower Left Dash

Courtesy of GENERAL MOTORS CORP.

Fig 117: Left Kick Panel

Courtesy of GENERAL MOTORS CORP.

Fig 118: Driver Door

Courtesy of GENERAL MOTORS CORP.

Fig 119: Right Front Door

Courtesy of GENERAL MOTORS CORP.

Fig 120: Left Rear Door

Courtesy of GENERAL MOTORS CORP.

Fig 121: Right Rear Door

Courtesy of GENERAL MOTORS CORP.

Fig 122: Radiator Support

Courtesy of GENERAL MOTORS CORP.

Fig 123: Windshield Washer Reservoir

Courtesy of GENERAL MOTORS CORP.

Fig 124: Top Of Dash

Courtesy of GENERAL MOTORS CORP.

Fig 125: Trailer Wiring

Courtesy of GENERAL MOTORS CORP.

Fig 126: Bottom Of Driver Seat

Courtesy of GENERAL MOTORS CORP.

Fig 127: Side Of Driver Seat

Courtesy of GENERAL MOTORS CORP.

Fig 128: Bottom Of Right Front Seat

Courtesy of GENERAL MOTORS CORP.

Fig 129: Side Of Right Front Seat

Courtesy of GENERAL MOTORS CORP.

Fig 130: Front Of Radiator

Courtesy of GENERAL MOTORS CORP.

Fig 131: Left Rear Of Engine Compartment

Courtesy of GENERAL MOTORS CORP.

Fig 132: CNG Components (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 133: CNG Components (2 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 134: Alternative Fuel Injector Relays

Courtesy of GENERAL MOTORS CORP.

Fig 135: Top Of The Engine Component Views - 6.6L

Courtesy of GENERAL MOTORS CORP.

Callouts For Fig. 135

Callout	Component Name
1	Fuel Heater
2	Fuel Filter
3	Water In Fuel (WIF) Sensor
4	Fuel Pressure Sensor
5	Fuel Temperature Sensor
6	Glow Plug Controller
7	Baro Sensor
8	Boost Pressure Sensor
9	Fuel Pressure Regulator
10	Fuel Injection Control Module (FICM)
11	Exhaust Gas Recirculation (EGR) Valve