2.3 L 202,000 miles No spark to #3 Inlet side

[INOV8TN]

Do I need a whole new coil pack or is there more diagnosis needed before I start replacing parts?

Whoops! Make that *Exhaust* side.

Thanks!

 

[Tbars4]

...Have you checked for stored codes???

...I recently had a problem with a coil pack and replaced them both....With the amount of age on them, I thought I would play it safe...
http://www.explorerforum.com/forums/showthread.php?t=238991&highlight=coil+pack

 

[INOV8TN]

Coil Pack - Diagnose, Repair or Replace

Good idea about the codes. I might learn something useful.

I'm going to go to the parts store and use their tool to get codes.

I am wondering if there's any possibility of repairing the pack to restore the spark to the #3 on the Exhaust side.

Is this a wasted spark system firing two at once? If so why does the 'partner' fire perfectly well.

The engine idles and drives well.

 

[INOV8TN]

Coil Pack - Diagnose, Repair or Replace

Replaced the Coil Pack - Never saw a Key On/Engine Off code related to the Ignition System. Idle is stronger. The codes (335 & 513) seem to be related to EGR sensor voltage being out of range and Internal Voltage Failure - PCM, respectively. I'm going to chase the 335 first.