Car not firing

Tiny
PURPLEDRAGON2626
  • MEMBER
  • 2005 HYUNDAI SONATA
  • 2.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 74,000 MILES
My car has no fire on all three coils. I hooked it up to my diagnostics machine and it gives me no errors.
Saturday, June 30th, 2018 AT 7:52 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi and thanks for using 2CarPros.com.

If you are getting no spark, the first thing I would check is the crankshaft position sensor. The sensor may have failed and set no code. Take a look through this link:

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

The engine size you indicated above does not exist. However, there is a 3.3L V6. If that is the correct engine size, the sensor is located on the left rear of the engine. See picture 1. If the engine is the 2.4L 4 Cyl, the sensor is located on the top rear of the engine. See picture 2.

If you have a scanner which can read live data, check to see if there is a crankshaft position sensor signal. If there is not chances are the sensor is bad or there is a wiring issue.

Let me know if this helps.

Take care,
Joe
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Sunday, July 1st, 2018 AT 7:24 PM

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