Firing order?

RICHIED53

MEMBER
2005 HYUNDAI SONATA
2.7L
V6
RWD
AUTOMATIC
130,000 MILES

This code keeps coming up which reads as misfire detected cylinder number 5. I have replaced all the spark plugs, all the wires and the fuel injector. To me all that is left is the coils. Am I on the right track or am I missing something? How? Since each coil pack fires two cylinders won't that mess up the firing order? Can each pack be unplugged from the wiring harness separately?

7 Replies

DANNY L

MECHANIC
5,648 POSTS

Hello, I'm Danny.

After replacing those components it sounds like you might be having an issue with the coil pack itself. It is possible there might be an internal failure of the coil packs number 5 cylinder internals. I've attached a picture below of what it looks like and its location. Hope this helps and thanks for using 2CarPros. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

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Friday, November 27th, 2020 AT 7:14 PM

DANNY L

MECHANIC
5,648 POSTS

Hello again.

I've attached a picture below of the available ignition coil from AutoZone auto parts store. Hope this helps and thanks again for using 2CarPros.

Danny-

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Sunday, November 29th, 2020 AT 3:40 PM

DEREK Z28

MEMBER
2 POSTS
2000 HYUNDAI SONATA
6 CYL
FWD
AUTOMATIC
126,000 MILES

Looking at the coil from driver side of car with the hood up, what is the order of the spark plug wires?

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Monday, November 30th, 2020 AT 5:33 PM (Merged)

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there, see pic for firing order.

mark (mhpautos)

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Monday, November 30th, 2020 AT 5:33 PM (Merged)

DEREK Z28

MEMBER
2 POSTS

Thanks Mark, the Hyundai Service Manual has pic of the coil in a different order and then later in the manual they have a pic of the plug wire routing and that one shows a different order of plug assignment to the coil. The latter is the order that you replied with. THANKS for the help!