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Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Auxiliary Battery Relay Replacement (6.2L) Auxiliary Generator Replacement (6.6L) Battery Positive Cable Fuse Replacement (w/Single Battery) or Battery Positive Generator Replacement (4.3L) or Generator Replacement (4.8L, 5.3L, 6.0L, and Generator Battery Jumper Cable Replacement Relay Replacement (Attached to Wire Harness) or Relay Replacement (Within an GENERATOR NOISE DIAGNOSIS Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Aids Noise from a generator may be due to electrical or mechanical noise. Electrical noise or magnetic Circuit/System Testing 1. Start the engine. Verify the noise can be heard. Compare the concern to a similar vehicle. 2. Perform a charging system test. Verify that the generator is charging properly. Refer to Charging System Test. If the battery is discharged, charge the battery. If the generator fails the charging system test, replace the generator. 3. Verify that the power steering fluid level is not low, if equipped. Refer to Checking and Adding Power Steering Fluid (With Hydroboost) or Checking and Adding Power
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Electrical - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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