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 MANUALSCHEVROLET2009SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISSTARTING AND CHARGINGCHARGING SYSTEMALTERNATORSERVICE AND REPAIRAUXILIARY GENERATOR REPLACEMENT
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Auxiliary Generator Replacement
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Auxiliary Generator Replacement
Auxiliary Generator Replacement (6.6L)
Removal Procedure
Warning: Refer to Battery Disconnect Warning (Service Precautions) .
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (With Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (With Auxiliary Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (With Dual Batteries) (Service and Repair) .
2. Remove the drive belt. Refer to Drive Belt Replacement (Service and Repair) .
3. Disconnect the engine wiring harness electrical connector (1) from the generator.
4. Reposition the engine wiring harness boot (4) in order to access the terminal stud.
5. Remove the engine wiring harness nut (3).
6. Remove the engine wiring harness terminal (2) from the generator.
7. Remove the generator bolts (1).
8. Remove the generator.
Installation Procedure
1. Install the generator.
Caution: Refer to Fastener Caution (Fastener Caution) .
2. Install the generator bolts (1).
Tighten the bolts to 50 Nm (37 lb ft).
3. Install the engine wiring harness terminal (2) to the generator.
4. Install the engine wiring harness nut (3).
Tighten the nut to 9 Nm (80 lb in).
5. Position the engine wiring harness boot (4) in order to cover the terminal stud.
6. Connect the engine wiring harness electrical connector (1) to the generator.
7. Install the drive belt. Refer to Drive Belt Replacement (Service and Repair) .
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (With Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (With Auxiliary Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (With Dual Batteries) (Service and Repair) .
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.