Engine starts then shuts off

Tiny
KIRCHTRELL
  • MEMBER
  • 1996 BUICK RIVIERA
  • 243,848 MILES
My 1996 buick riviera starts then stops then I have to wait a couple minutes to start back up can you tell me why does this happen
Tuesday, December 6th, 2011 AT 5:30 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This could be due to a faulty crank position sensor.
Heat is probably making the sensor to stop working and triggering the shutdown. As you wait the sensor cools down and you are able to start it.
Here are couple of helpful articles:

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

This can sometimes trigger the check engine light. Is your check engine light illuminated?
If so, get it scanned for codes, as it can help with the diagnostics.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.
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Tuesday, September 28th, 2021 AT 12:06 PM

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