stalls then high rpm on restart

2001 BUICK REGAL
175,000 MILES • 6 CYL • FWD • AUTOMATIC
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CJPX
  • MEMBER
  • 1 POST
After driving for about thirty minutes it stalls then high rpm on restart. turn key off then restart rpm normal. Then drive and stalls then high rpm on restart. Had code po133 replaced upper o2 sensor. Problem not solved.
Oct 5, 2017 at 8:52 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,673 POSTS
This sounds like a classic crankshaft angle sensor that is no good.

Here is a guide to show you what you are in for when doing the repair:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Below is what it will be like on your car.

Please let us know what happens.

Cheers, Ken
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Oct 6, 2017 at 9:59 AM
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