Rick's Free Auto Repair Advice

Posts Tagged: voltage regulator

Headlights flicker

Fix a headlights flicker condition on Buick Rendezvous, Terrazas, Pontiac Aztek, Montana, Chevrolet Uplander 2005-07 Buick Rendezvous and Terrazas, Pontiac Aztek and Montana, Chevrolet Uplander vehicles may exhibit a headlights flicker condition and interior lights flickering issue. The problem usually shows up at idle and is due to alternator fluctuations. You may not have to replace the entire alternator however. GM has identified a fault in the voltage regulator. Install an updated regulator #25854910 to solve the problem.   © 2012 Rick Muscoplat Save

Voltmeter fluctuates GM Trucks

The voltmeter fluctuates on my GM Truck GM has issued a technical service bulletin #07-06-03-009 regarding Voltmeter fluctuates GM Trucks. GM says fluctuating voltage on the vehicle’s voltmeter is NORMAL and is not a reason to replace any parts. The TSB applies to 2005-08 Cadillac Escalade, 2005-08 avlanche, Silverado, Silverado Classic, Suburban, Tahoe, 2005-08 GMC Sierra, Sierra Classic, and Yukon. The charging systems in these vehicles do not use an alternator decoupler to increase gas mileage. Instead they incorporate a Regulated Voltage Control (RVC) system. The RVC is controlled by … Read More

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