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Why won’t my car start after replacing the battery?
I just got my battery replaced but my car is still really slow to start. What is happening? Why won’t my car start after replacing the battery?
Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Oh no, that sounds so frustrating! If you’re sure it’s not a battery problem, then the problem may be a faulty ignition switch, alternator, or starter.
The most likely explanation is that your alternator isn’t functioning properly. In other words, your battery is in great shape but the alternator isn’t charging it. If your car won’t start with a new battery, you most likely have a bad alternator.
Other key signs of alternators problems are:
- Dim—or extremely bright!—headlights
- Slow rolling power windows
- Slow or faulty electronic systems (like the radio)
- Whining or growling when the car is running, especially when the AC is switched on
- Burning rubber smell
Replacing or servicing the alternator can be expensive (between $250 and $500) and
time-consuming
. Make sure to diagnose this problem properly before booking an appointment.Of course, the transmission, the fuse, the ignition switch, and the spark plugs could also be at fault. Your fuel pump might also be struggling. So many possible problems!
Your best approach is to get a skilled mechanic to diagnose the problem.
Car ownership can be stressful! But
car insurance
can be easy, if you use Jerry
. If you want to talk to a real human, our friendly agents can help you find a cheap policy via text or phone. If you prefer to use the app, download it free from the app store. It’s easy to browse rates and sign up for a policy in seconds. Good luck with your car!
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- Gregory R.
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Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.
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