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.
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HOMESERVICE MANUALSCHEVROLET2008EXPRESS 2500 V8-6.6L DSL TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR TEMPERATURE SENSOR ( AMBIENT / INTAKE )LOCATIONS
2008 Chevrolet Express 2500 V8-6.6L DSL Turbo
Air Temperature Sensor ( Ambient / Intake ): Locations
2008 Chevrolet Express 2500 V8-6.6L DSL TurboSECTION Locations
Powertrain Component Views
Upper Engine (LBZ and LLY)
1 - X112
2 - Fuel Rail Pressure (FRP) Sensor
3 - Turbocharger Vane Position Control Solenoid Valve
4 - Turbocharger Vane Position Sensor
5 - Glow Plug Control Module (GPCM)
6 - Fuel Rail Temperature (FRT) Sensor
7 - Intake Air Temperature (IAT) Sensor 2
8 - X111
9 - X110
10 - X107
11 - Fuel Pressure Regulator
12 - Engine Coolant Temperature (ECT) Sensor
13 - Intake Air Heater (IAH) Module
14 - Manifold Absolute Pressure (MAP) Sensor
15 - X108
16 - Exhaust Gas Recirculation (EGR) Valve
Left Side of the Engine (LMM)
1 - X110
2 - X111
3 - Intake Air Temperature (IAT) Sensor 2
4 - Fuel Injector 4
5 - Glow Plug Control Module (GPCM)
6 - Fuel Injector 6
7 - Fuel Injector 8
8 - Glow Plug 8
9 - Glow Plug 6
10 - Engine Oil Level Switch
11 - Engine Oil Pressure (EOP) Sensor
12 - G107
13 - G102
14 - G103
15 - Glow Plug 4
16 - Glow Plug 2
17 - Fuel Injector 2
18 - X101
19 - A/C Compressor
Upper Engine
1 - Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor
2 - Throttle Body
3 - Intake Air (AI) Flow Valve
4 - Intake Air Heater (IAH) Module
5 - Manifold Absolute Pressure (MAP) Sensor
6 - Turbocharger
7 - Turbocharger Vane Position Control Solenoid Valve
8 - Turbocharger Vane Position Sensor
9 - Fuel Rail Temperature (FRT) Sensor
10 - X111
11 - X110
RENDER: 1.0x
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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.