Shuts off when using the power windows or the rear defrost?

Tiny
BIGBOI1978
  • MEMBER
  • 1999 PONTIAC BONNEVILLE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 137,000 MILES
My car tries to shut off if I use the power windows or if I turn on the rear defrost.
Thursday, March 23rd, 2023 AT 9:57 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 44,209 POSTS
It sounds like you have an alternator that is not working, and the electrical system becomes weak when demand is put on it, do you have a battery light on? Let's check alternator output by following this guide:

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

Please go over this guide and report back.

Was this
answer
helpful?
Yes
No
Friday, March 24th, 2023 AT 6:57 PM
Tiny
BIGBOI1978
  • MEMBER
  • 3 POSTS
There is no battery light on, but I read another one of your articles and I think it's okay now.
Was this
answer
helpful?
Yes
No
Saturday, March 25th, 2023 AT 8:50 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 44,209 POSTS
What fixed it if I can ask you please?
Was this
answer
helpful?
Yes
No
Sunday, March 26th, 2023 AT 12:33 PM

Please login or register to post a reply.

Sponsored links