The engine cranks but does not start. Fuel pressure in fuel rails.
Jun 5, 2022 at 9:38 AM
Crank but no start
1998 LINCOLN MARK VIII
JCLEMMOJOE
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- 1 POST
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SQM
- ✓ASE Certified Mechanic
- 6,383 POSTS
Hello,
Generally speaking, you will need spark, fuel and compression to start the engine.
Have you checked for spark to the plugs?
Spark issues can be due to plugs, ignition coil, ignition control module. It can also be due to a faulty crank position sensor.
Keep in mind if there is inadequate fuel pressure it might not start the engine either.
The best course of action would be to look at each possibility and go from there.
Take a look at this guide, it goes over the typical diagnostics process for crank no start issues:
https://www.2carpros.com/articles/car-not-running-advanced
Go through these and let me know what you find or if you have any questions.
Thank you.
Generally speaking, you will need spark, fuel and compression to start the engine.
Have you checked for spark to the plugs?
Spark issues can be due to plugs, ignition coil, ignition control module. It can also be due to a faulty crank position sensor.
Keep in mind if there is inadequate fuel pressure it might not start the engine either.
The best course of action would be to look at each possibility and go from there.
Take a look at this guide, it goes over the typical diagnostics process for crank no start issues:
https://www.2carpros.com/articles/car-not-running-advanced
Go through these and let me know what you find or if you have any questions.
Thank you.
Jun 5, 2022 at 3:56 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.