Will not crank over

Tiny
JDANGELO
  • MEMBER
  • 2006 CADILLAC STS
  • 3.6L
  • V6
  • AUTOMATIC
  • 160,000 MILES
"whirling sound" upon trying to crank the engine over, Purchased new battery. Have a push button ignition."whirling sound when trying to start engine. Is it Bendix? Flywheel? Timing chain? Has been a hard to start problem for months! Now refuses to start just whirling sound, wont crank over.
Sunday, August 18th, 2019 AT 7:04 AM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This is the Bendix gear on your starter not engaging the flex-plate (flywheel is for a manual transmission) on your engine. In the diagrams down below I have included the factory instructions for the removal and installation of your vehicle's starter motor. Please go through this guide and get back to us with what you are able to find out, or how everything turns out.

Thanks,
Alex
2CarPros
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Sunday, August 18th, 2019 AT 5:22 PM
Tiny
JDANGELO
  • MEMBER
  • 2 POSTS
Thank You so very much, I cannot do this my myself. I am sending it to mechanic shop for testing and replacement. Thanks again.
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Sunday, August 18th, 2019 AT 7:38 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
It sounds like the starter need to be replaced are the battery is low on charge/bad. Can you please shoot a quick video with your phone so we can hear the noise? that would be great. You can upload it here with your response.

This guide can help test the battery:

https://www.2carpros.com/articles/car-battery-load-test

This guide will help walk you through the starter replacement with instructions for you car in the diagrams below:

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

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Thursday, August 22nd, 2019 AT 12:03 PM

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