Shut off while driving, engine cranks but does not start?

1997 CADILLAC DEVILLE

1,062,470 MILES • 4.5L • V8 • 2WD • AUTOMATIC

DOUGLAS DEVORE

MEMBER
1 POST

While highway driving 2 days ago, the engine just stopped running. When I pulled over, the windows didn't work, the headlights didn't work, the interior lights didn't work, and the fuel pump wasn't getting any electricity. The engine will turn over, fart and shut off but will not run.

Sep 8, 2024 at 12:06 PM

JACOBANDNICKOLAS

✓Experienced Mechanic
110,240 POSTS

Hi,

Does anything electrical work other than the starter motor? Have you checked fuses for the non-operational electronics to see if there is power both to and from them? If not, do that.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

I dug through the power and ground distribution schematics. I don't see any correlation between the things that you mentioned as far as grounds. So, that leaves power. They get power from different fuses, but the fuses get power from the same power source. That is why I'm asking about the fuses. If they don't have power to them, we need to work backward to see where the loss is.

Let me know.

Joe

Sep 8, 2024 at 12:46 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.