stalling when headlights are turned on?

2008 HYUNDAI ACCENT
183,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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CARSHOPER
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  • 1 POST
my car drives good in the day light but every time i turn my headlights on at night they slowing go dim and then the car starts to stall out and then cuts off.
Dec 1, 2022 at 5:15 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

It sounds like the alternator is failing. Here is what I need you to do: Follow the directions in this link and let me know the results.

When testing, check the alternator output with the lights off first. Then check the output with the lights and other electrical components such as the heater blower motor, the wipers, and anything you can think of, and let me know the output at that point.

Here is the link:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

The test is very simple. However, you need a voltmeter or a general multimeter. Let me know if this is something you can do.

Take care,

Joe
Dec 1, 2022 at 9:05 PM
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