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 MANUALSGMC2022SIERRA 1500 SLT, 6.2L ENG VIN LREPAIR AND DIAGNOSISDRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESFRONT DRIVE AXLE - DIAGNOSTIC INFORMATION AND PROCEDURES
2022 GMC Sierra 1500 SLT, 6.2L Eng VIN L
Front Drive Axle - Diagnostic Information And Procedures
2022 GMC Sierra 1500 SLT, 6.2L Eng VIN LSECTION Front Drive Axle - Diagnostic Information And Procedures
- Diagnostic Information and Procedures
- DTC C11B0
- DTC C1308
- DTC C159B
- Symptoms - Front Drive Axle
- Front Drive Axle Noises
- Noisy in Drive
- Noisy When Coasting
- Intermittent Noise
- Constant Noise
- Noisy on Turns
- Four-Wheel Drive Does Not Engage (SU4)
- Four-Wheel Drive Does Not Engage (SU5)
- Four-Wheel Drive Does Not Disengage (SU4)
- Four-Wheel Drive Does Not Disengage (SU5)
- Front Axle Lubricant Leak Diagnosis
- Front Electronic Locking Differential Malfunction
- Front Electronic Locking Differential Indicator Malfunction
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.