Code P0304

Tiny
DRADZANOWSKI
  • MEMBER
  • 2009 HYUNDAI SONATA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
When you're looking at the car, what is the cylinder order (not firing order)? I've looked online for awhile, and Autozone help guides don't have a graphic posted.

C C C C
? ? ? ?
Front of car

Me-looking for cylinder 4
Friday, April 16th, 2021 AT 10:56 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

The front of the engine that has the drive belt, look there.

The cylinder closest to that is one, then 2 then 3 and finally 4.

I would start with a compression test to be sure there is nothing wrong inside the motor. Then check your plugs to see if there is any fuel or oil on them.

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/how-to-change-spark-plugs

I attached a picture for you below.

Roy
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Friday, April 16th, 2021 AT 2:11 PM

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