Shut off while driving, engine cranks but does not start

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

KEN L

MASTER CERTIFIED MECHANIC
48,363 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

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

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

KEN L

MASTER CERTIFIED MECHANIC
48,363 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

ASH2020