My car takes long to start. While the car is running I took the negative terminal off the battery. The car continued to run. How do I know if its the battery or alternator
What makes this problem better or worse?
When the. Engine is cold
How long has your 2012 Hyundai Sonata had this problem?
First,that is a NO NO! never disconnect one of the battery terminals on a vehicle when it's running! if it was a 1975 year model,then yes that's an old school way,but not on today's modern vehicles.you said taking to long to start? is it cranking the engine over and not starting the engine right away,explain "taking to long to start".
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