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Shut off while driving, engine cranks but does not start

Tiny
ASH2020
  • MEMBER
  • 2000 CADILLAC ESCALADE
  • 4WD
  • AUTOMATIC
  • 78,000 MILES
It was going down 65 full tank of gas and just shut off and has not started since. We have replaced the fuel pump, and camshaft sensor and 3 out of 4 o2 sensors and still it turns over but does not fire? Help please.
Sunday, January 17th, 2021 AT 3:19 PM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
This sounds like a crankshaft angle sensor has gone out. When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

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

and

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

Here is how to change out the crankshaft sensor:

https://youtu.be/-Ib3Lkde3Wo

Let us know what happens and please upload pictures or videos of the problem.

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Monday, January 18th, 2021 AT 7:09 PM
Tiny
ASH2020
  • MEMBER
  • 4 POSTS
Well, before we changed the fuel pump a little, but after we changed it not at all.
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Monday, January 18th, 2021 AT 7:59 PM
Tiny
ASH2020
  • MEMBER
  • 4 POSTS
We called a shop and they came and got it today. I was just trying to fix it without having to pay much more than what we have put in it.
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Monday, January 18th, 2021 AT 8:00 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Lets try a fuel pump pressure. test this guide will help:

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

Please let us know what you find. We are interested to see what it is.
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Wednesday, January 20th, 2021 AT 1:08 PM
Tiny
ASH2020
  • MEMBER
  • 4 POSTS
It's still in the shop, have not heard anything about it yet.
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Thursday, January 21st, 2021 AT 12:53 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Does the engine crank over okay? Please let us know what happens.
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Thursday, January 21st, 2021 AT 9:03 AM

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