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Ecoboost stumble, but no humidity???

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Old Nov 13, 2013 | 07:59 PM
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  #16  
KingRanchCoy's Avatar
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Joined: Sep 2008
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From: San Angelo, TX
Originally Posted by jntibs

Anybody know the plug gap spec offhand? I think I may double check them to satisfy my curiosity.
.035 for the plug gap
 
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Old Dec 21, 2013 | 09:10 AM
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  #17  
papa tiger's Avatar
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My experience with Iridium spark plugs is that they stumble. I found double platinum are fine.
 
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Old Dec 21, 2013 | 12:17 PM
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TOOLOUD's Avatar
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Change you're plugs and Re-Gap them to .030 and it should eliminate any / all of the misfiring issues.
 
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Old Dec 21, 2013 | 12:20 PM
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  #19  
Wookie's Avatar
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From: Cabot, AR
Read the codes and see if it is the same cylinder that is missing. If so move the coil and see if the miss follows. I have seen several reports of bad coils that cause misfires.
 
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Old Dec 22, 2013 | 05:13 PM
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08FX4SC's Avatar
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From: Wisconsin
Originally Posted by risupercrewman
Ah my 2008 has the updated heads & has regular plugs! I checked. Thanks for your concern......
Mine too!
 
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Old Dec 22, 2013 | 05:20 PM
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  #21  
08FX4SC's Avatar
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From: Wisconsin
Originally Posted by jntibs
I just had the dreaded ecoboost shudder misfire happen this morning, ironically as I was taking the truck in to the dealer for an oil change.

However, my misfire situation seems different than most others described with the high humidity and long drive times. My truck stumbled after only being on the road for 5 minutes and it was only 17 degrees. Any one else get this misfire issue without an extended drive in high humidity? My truck had just gotten up to operating temps when it happened.


OP. Did you buy the truck from Beaver Dam Ford?
 
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