Engine stalls when lights are on

Tiny
GRIZZ
  • MEMBER
  • 2005 CHEVROLET TRAILBLAZER
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160 MILES
Passenger side lights are dim. Car will stall lights are turned on.
Thursday, November 4th, 2021 AT 6:58 AM

1 Reply

Tiny
AL514
  • MECHANIC
  • 4,675 POSTS
Hello, it sounds like you may have a charging system that is not working correctly, when the headlights are turned on it may be pulling the entire system voltage too low, or there may be a short circuit somewhere that just isn't blowing a fuse. Is anything else in the vehicle now working correctly? Possibly a bad battery too.

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

https://www.2carpros.com/articles/how-a-car-electrical-system-works

https://www.2carpros.com/articles/car-battery-load-test
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Thursday, November 4th, 2021 AT 5:45 PM

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