Intermittent not starting issue?

Tiny
ZACHWYLIE18
  • MEMBER
  • 2018 HONDA CIVIC
  • 2.0L
  • 4 CYL
  • AUTOMATIC
  • 48,000 MILES
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.
Tuesday, October 4th, 2022 AT 7:21 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,779 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
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Tuesday, October 4th, 2022 AT 8:25 PM

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