Engine shut off while driving

2000 CHEVROLET BLAZER
170,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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RUDEBOI556
  • MEMBER
  • 1 POST
Okay, I have the vehicle listed above. I was riding down the highway and all of a sudden it shuts off the only thing out of place is a knock sensor by the distributor. can that keep my car from cranking it will turn over?
Apr 1, 2021 at 4:53 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

The knock sensor is used to fine-tune ignition timing. It shouldn't prevent it from starting.

I need you to do a couple of checks. Chances are you either lost fuel pressure or spark to the spark plugs. Here are two links that show how to test for both:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

I need you to check for both of those. Also, here is a link you may find of interest. It discusses the most common causes of a crank no start condition:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Let me know what you find or if you have other questions.

Take care,
Joe
Apr 1, 2021 at 1:10 PM
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