jcaroth Posted July 21, 2017 Share Posted July 21, 2017 Hey everyone. After the success of my last post about problems after a timing belt change (due to a cracked radiator), I figured I'd start a new thread about my latest set of issues with the car. Since replacing my timing belt, waterpump, and radiator, the car has been up and running for about a week. Since then, some issues have appeared: Rough idle/stuttering issueFlickering radio/HVAC controlsBrake and battery lights flickering while idling at red lightsDimming headlights whenever I turn the AC on, plug something into my cig lighter, etc. I've had some issues with my battery since purchasing the car last October, so my first instinct is to replace it. That said, I've done some reading up on the forums here and learned that the alternator could also be to blame. I logged the "Control Module Voltage" from the Torque Pro app (graph attached), and it looks like I'm floating right around 13.6 V while driving. With the engine stopped, the voltage settles around 12.5 V. Two questions: Does this look like a bad battery or a bad alternator?Could this be causing the rough idle I've been feeling? I appreciate the help. EDIT: It's also worth noting that I noticed a torn grounding cable on the bottom of my engine, driver's side. I can replace this with regular 12 GA wire, right? Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.