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2005
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Silverado 1500 HD, 4WD
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting
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Troubleshooting
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Inadequate Lubrication at Low Line or Heavy Loads
Inadequate Lubrication at Low Line or Heavy Loads
Inadequate Lubrication at Low Line or Heavy Loads
Checks
Cause
Converter Limit Valve (214)
Valve is stuck closed by sediment or by a collapsed valve bore.
Retainer Pin (211)
Broken