Regulated Voltage Control Charging System Explained | 2011 Chevy Avalanche Alternator Replacement скачать в хорошем качестве

Regulated Voltage Control Charging System Explained | 2011 Chevy Avalanche Alternator Replacement

In this step-by-step guide, we test and replace an alternator on a 2011 Chevy Avalanche 5.3L V8. This vehicle features GM’s Regulated Voltage Control (RVC) charging system, which uses both the PCM and BCM to manage alternator output. We’ll cover: • Proper battery testing before alternator replacement • Using a scan tool to check for charging system codes • Inspecting and replacing the serpentine belt & tensioner • Correct torque specs (41 ft-lbs) for alternator mounting bolts • Final voltage output testing (13.2–14.8V under load) This video highlights best practices to avoid repeat failures and ensure long-lasting charging system performance. 🔧 Whether you’re a DIYer or a professional tech, this walkthrough will help you handle alternator replacements on GM RVC systems the right way. 1. Diagnosis and Troubleshooting 0:26 Understand the RVC System – Learn how the Body Control Module (BCM) and Powertrain Control Module (PCM) work together to regulate the charging system. 0:51 Test the Battery – Always test the battery first to ensure it's not the source of the issue. 1:06 Inspect the Serpentine Belt – Check the belt for wear and tear. 1:09 Use a Scan Tool – Use a diagnostic scan tool to check for fault codes in the PCM and BCM. 2. Preparation for Installation 2:32 Read the Technical Bulletin – Review the information provided with the new alternator. 3:13 Safety First – Turn off the ignition and all accessories, then disconnect the negative battery cable, followed by the positive cable. 3. Removing the Old Alternator 3:31 Disconnect Wires – Disconnect the B+ terminal wire and the two-pin connector from the back of the alternator. 3:41 Remove the Serpentine Belt – Loosen the tensioner to remove the belt from the alternator pulley. 3:58 Inspect the Tensioner – Check the tensioner for any sticking, binding, or excessive play. 4:49 Remove Mounting Bolts – Remove the two mounting bolts at the bottom of the alternator. 5:08 Remove the Alternator – Carefully pry the old alternator out of its bracket. 4. Installing the New Alternator 5:22 Position the New Alternator – Thread the new alternator's mounting bolts by hand to prevent cross-threading. 5:36 Torque the Bolts – Torque the mounting bolts to the vehicle's specifications. 6:03 Reconnect Wires – Plug in the two-wire connector and install the B+ wire. 6:48 Install New Serpentine Belt – Make sure the new belt is routed properly. 6:58 Reconnect the Battery – Reconnect the positive terminal first, and then the negative terminal. 5. Final Charging System Verification 7:17 Start the Engine – Start the engine and let it idle. 7:20 Apply Electrical Loads – Turn on headlights, A/C, and rear defrost. 7:29 Raise Engine RPM – Increase the engine RPM to 2,000 and hold it. 7:32 Verify Voltage – Check that the charging system voltage is within the correct range (typically 13.2 to 14.8 volts). #DIYMechanic #AlternatorReplacement #ChevyAvalanche #GMTech #RVCSystem #ScanToolTips #MechanicLife #CarMaintenance #StepByStepRepair #AutoRepairsion