Will not crank or start after serpentine belt snapped while driving?

2002 CHEVROLET TRAILBLAZER
202,000 MILES • 4.2L • V6 • 2WD • AUTOMATIC
Avatar
CODY AN ICSUARENEE BOYER
  • MEMBER
  • 1 POST
Driving home from the hospital serpentine belt snapped power steering went out. pulled over replace the belt then it snapped again, replace serpentine belt. still no crank no start. then replace the starter, starter relay and a brand new battery. what am I missing what's next?
Mar 12, 2021 at 1:17 AM
Advertisement
Avatar
AL514
  • ✓Experienced Mechanic
  • 5,644 POSTS
Hello, the reason the belt keeps breaking is your clue. I would take the belt back off and try to spin each pulley by hand. If one of them is seized up, or on its way out, this is what happens. You lose your alternator, power steering pump and whatever is driven by the belt. Make sure the belt tensioner is able to move as well. Not just the pulley, but the end that keeps tension on the belt. You'll find the problem when you try spinning all the pulleys, including the alternator and power steering pump. Let us know what you find.

https://www.2carpros.com/articles/how-a-serpentine-belt-tensioner-works

https://www.2carpros.com/articles/how-a-serpentine-belt-works

https://www.2carpros.com/articles/car-squeaking-noise
Mar 12, 2021 at 3:31 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.