Symptoms developing over the past few days (not sure if all are related):
- Mild vibration at idle
- Kenwood touchscreen's CarPlay connection unstable when engine is running and warm
- Starter cranks more slowly than it used to
- While maneuvering in a parking lot, traction control & ABS lights turn on while I'm steering and turn off when I stop steering
- While driving with AC blasting, TC & ABS lights stay on at idle but turn off above 1k RPM
Battery Voltages:
~11.3 with car off
~13.4 after cold start, engine idling
~11.5 with AC on & rad fans maxed **
** EDIT: This was only a momentary reading the moment the fans went high. I didn't wait around to see if voltage ramped back up.
Battery is barely a few months and a few thousand miles old (Odyssey AGM, oversized). Alternator may be original (MY 2012, >166k miles).
Today I pulled both battery connectors, cleaned them a bit, reconnected them with a thin layer of dielectric grease on the battery posts, cranked the nuts down nice and tight, and cleaned the ring terminal on the chassis ground up at the top of the engine bay. Haven't retested anything since then; waiting for my CTEK to top off the battery first. Will report back when I do.
What else is easy to check? And/or, does the above pattern of symptoms strongly suggest any particular problem?
- Mild vibration at idle
- Kenwood touchscreen's CarPlay connection unstable when engine is running and warm
- Starter cranks more slowly than it used to
- While maneuvering in a parking lot, traction control & ABS lights turn on while I'm steering and turn off when I stop steering
- While driving with AC blasting, TC & ABS lights stay on at idle but turn off above 1k RPM
Battery Voltages:
~11.3 with car off
~13.4 after cold start, engine idling
~11.5 with AC on & rad fans maxed **
** EDIT: This was only a momentary reading the moment the fans went high. I didn't wait around to see if voltage ramped back up.
Battery is barely a few months and a few thousand miles old (Odyssey AGM, oversized). Alternator may be original (MY 2012, >166k miles).
Today I pulled both battery connectors, cleaned them a bit, reconnected them with a thin layer of dielectric grease on the battery posts, cranked the nuts down nice and tight, and cleaned the ring terminal on the chassis ground up at the top of the engine bay. Haven't retested anything since then; waiting for my CTEK to top off the battery first. Will report back when I do.
What else is easy to check? And/or, does the above pattern of symptoms strongly suggest any particular problem?
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