I bought a 2010 Chevy Traverse and immediately replaced battery, got an oil change, balanced and rotated tires. It starts but takeS a few seconds. Also, sometimes after it starts and is running, it continues cranking like it’s not started yet. Mechanic says starter was bad songot it replaced. Same issue exists. Mechanic says battery is overcharged and needs to be exchNged. Is this possibly the issue?
My car has 94000 miles.
My car has an automatic transmission.
If the starter is failing to disengage, that is typically a starter or starter circuit problem. The status the battery would be irrelevant and if the mechanic claims an "overcharged" battery is causing the starter to "run on", I would look for a more competent mechanic. As far as the alleged overcharging of the battery, the output of the alternator has to be measured and compared against the factory specifications in the service manual before you can determine what, if anything, needs to be done.
If the engine is not starting as readily as it used to (or should), there is something wrong. There are many causes of hard starting but illustrative ones are a faulty engine coolant temperature switch (sensor), worn spark plugs, inadequate fuel delivery or pressure (e.g., clogged fuel filter), dirty fuel injectors, contaminated or old gasoline, malfunctioning idle air control valve, poor engine compression, and so forth. You have the specific cause of the hard starting identified if you request a hard starting diagnostic. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
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