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 MANUALSCHEVROLET2023SILVERADO 1500 HIGH COUNTRY, 5.3L ENG VIN D, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSELECTRICAL COMPONENT LOCATOR AND WIRING HARNESS ROUTING VIEWSCOMPONENT LOCATORPOWERTRAIN COMPONENT VIEWSENGINE COMPONENTS - TOP (L3B)
2023 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN D, 4WD
Engine Components - Top (L3B)
2023 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN D, 4WDSECTION Engine Components - Top (L3B)
| Items |
|---|
| 1. T8A Ignition Coil 1 (L3B/L84/L87) T8A Ignition Coil 1 (L3B) |
| 2. M130B Exhaust Camshaft Profile Actuator 2 (L3B) M130B Exhaust Camshaft Profile Actuator 2 (L3B) |
| 3. M130C Exhaust Camshaft Profile Actuator 3 (L3B) M130C Exhaust Camshaft Profile Actuator 3 (L3B) |
| 4. T8C Ignition Coil 3 (L3B/L84/L87) T8C Ignition Coil 3 (L3B) |
| 5. T8D Ignition Coil 4 (L3B/L84/L87) T8D Ignition Coil 4 (L3B) |
| 6. M129D Intake Camshaft Profile Actuator 4 (L3B) M129D Intake Camshaft Profile Actuator 4 (L3B) |
| 7. M129C Intake Camshaft Profile Actuator 3 (L3B) M129C Intake Camshaft Profile Actuator 3 (L3B) |
| 8. M129B Intake Camshaft Profile Actuator 2 (L3B) M129B Intake Camshaft Profile Actuator 2 (L3B) |
| 9. T8B Ignition Coil 2 (L3B/L84/L87) T8B Ignition Coil 2 (L3B) |
| 10. M129A Intake Camshaft Profile Actuator 1 (L3B) M129A Intake Camshaft Profile Actuator 1 (L3B) |
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.