Friday, October 6, 2017
I've been having problems when I try to restart my Corvette once the engine is hot.
Yesterday, I took the car for a spin around town and, after a stop at the local Sunoco, I went to start the car, only for the starter to barely turn like if the battery was almost dead. What's interesting is that while it struggles for a few seconds, eventually it spins somewhat normally and the car starts right up.
The dashboard battery gauge proved that the alternator was doing its job by showing the battery was being charged, so I believe that's not the culprit as I think the loads being imposed on the battery while trying to restart the car, are strong enough to require the alternator to recharge it, as shown by the gauge. After a minute or so, the needle settles back down to a normal positive voltage.
In order to chase this issue, I removed the battery to have it tested at the local auto parts store, where it showed a 95% charge and it was given a clean bill of health for both voltage and cold cranking amps.
The battery, by the way, is barely two years old, and—it's been my experience—that you can get approximately five years of life out of a car's battery.