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Vehicle will not crank with the key, but will crank when boosted?

Tiny
4236199581
  • MEMBER
  • 2009 GMC ACADIA
  • 3.6L
  • 6 CYL
  • 4WD
  • 232,000 MILES
Why is this happening? Battery has been replaced (twice). But the problem still exists. It acts like there is a live circuit still on somewhere.
Tuesday, October 18th, 2022 AT 9:23 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
This is common when the starter motor is going out. here is a generic guide to help you change it out with instructions below to show you how on your car. The booster battery helps give the motor more voltage which overcomes the failure.

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

Check out the images (below). Please let us know if you need anything else to get the problem fixed.

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Tuesday, October 18th, 2022 AT 11:18 AM
Tiny
4236199581
  • MEMBER
  • 2 POSTS
Thank you
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Tuesday, October 18th, 2022 AT 11:59 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Use 2CarPros anytime, we are here to help. Please tell a friend.
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Wednesday, October 19th, 2022 AT 12:28 PM

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