P0300 Multiple Cylinders Misfiring

Saharaunlmtd

Caught the Bug

• May 10, 2013

• #1

Is this code the end of the world? Started my jeep at lunch and the idle was rough. It's not sounding great either. The jeeps am 07 with 118,000 miles if it helps.

 

jeeeep

Hooked

• May 10, 2013

• #2

Saharaunlmtd said:

Is this code the end of the world? Started my jeep at lunch and the idle was rough. It's not sounding great either. The jeeps am 07 with 118,000 miles if it helps.

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depends on what is causing it, with 118,000 miles, when was the last time you changed plugs and wires?

 

Saharaunlmtd

Caught the Bug

• May 10, 2013

• #3

Never. Which is what I was hoping the culprit would be!

 

jeeeep

Hooked

• May 11, 2013

• #4

I would start there, especially since it's showing multiple cylinders - pull a plug from each side and check them first.

 

Linebacker

Caught the Bug

• May 11, 2013

• #5

118K miles on an 07! Impressive. Plugs and wires, gotta be it. Hope this helps. Good luck.:thumb:
http://wayalife.com/showthread.php?7347

 

Saharaunlmtd

Caught the Bug

• May 13, 2013

• #6

Turned out it was the ignition coil pack. No firing at all in cylinder 2.

Thanks for the help.

 

Linebacker

Caught the Bug

• May 13, 2013

• #7

Saharaunlmtd said:

Turned out it was the ignition coil pack. No firing at all in cylinder 2.

Thanks for the help.

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Glad it worked out so well. Now you know why I didn't become a brain surgeon.:grayno: