Intermittent not starting issue?

2018 HONDA CIVIC
48,000 MILES • 2.0L • 4 CYL • AUTOMATIC
Avatar
ZACHWYLIE18
  • MEMBER
  • 3 POSTS
The car will start and run but sometimes after you shut it off it won't start again, but after it sits for a couple of hours it will start back up.
Oct 4, 2022 at 7:21 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.
Advertisement
Avatar
JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Based on your description, it sounds like a faulty crankshaft position sensor. When they begin to fail, they are adversely affected by heat. Once it cools off, it will begin working again.

Here is what I need you to do: When it won't start, see if it starts for a couple of seconds using starting fluid. If it does, then we know it's a fuel-related issue. If there is no change, we need to check for an ignition spark to the plugs.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/how-to-check-for-ignition-spark

Additionally, here is a link that explains the symptoms related to a failing sensor. Take a look through it and let me know if you feel it mirrors what you experience.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know what you find.

Joe
Oct 4, 2022 at 8:25 PM
Advertisement