2012 EB rough and bucking at high and WOT - ?
Thread Starter
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Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
2012 EB rough and bucking at high and WOT - ?
Howdy All,
I've had this 2012 for several months now but have never really romped on the throttle until yesterday's road trip (not a lead foot driver).
I was driving on the highway at about 55 when I needed to pass so I floored the throttle and - the truck bucked like a wild horse and the power dropped to a low acceleration. Once I backed off the throttle to about half-way the engine took off like "normal".
These symptoms were repeatable throughout my entire 500 mile trip. Is this a known issue with the EB?
Thoughts?
CMOS
I've had this 2012 for several months now but have never really romped on the throttle until yesterday's road trip (not a lead foot driver).
I was driving on the highway at about 55 when I needed to pass so I floored the throttle and - the truck bucked like a wild horse and the power dropped to a low acceleration. Once I backed off the throttle to about half-way the engine took off like "normal".
These symptoms were repeatable throughout my entire 500 mile trip. Is this a known issue with the EB?
Thoughts?
CMOS
Senior User
Joined: Mar 2015
Posts: 140
Likes: 0
From: Boston
How many miles? Did a CEL come on or blink? I would guess a misfire if you're on your original plugs. I had mine replaced at 45k with these same issues. https://www.ford-trucks.com/forums/1...-replaced.html
Thread Starter
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Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
How many miles? Did a CEL come on or blink? I would guess a misfire if you're on your original plugs. I had mine replaced at 45k with these same issues. https://www.ford-trucks.com/forums/1...-replaced.html
There was never any CEL when the conditions were observed.
CMOS
Senior User
Joined: Mar 2015
Posts: 140
Likes: 0
From: Boston
The service that I had performed replaced the plugs and boots with motorcraft plugs gapped to .030. I had it done at ford for 450. It fixed the problem for me. When I had it done they also cleaned the fuel system and did a software update.
72k is a lot on original eco plugs.
72k is a lot on original eco plugs.
Super Moderator
Joined: Jan 2008
Posts: 40,024
Likes: 1,520
From: Maine, Virginia
The service that I had performed replaced the plugs and boots with motorcraft plugs gapped to .030. I had it done at ford for 450. It fixed the problem for me. When I had it done they also cleaned the fuel system and did a software update.
72k is a lot on original eco plugs.
72k is a lot on original eco plugs.
Be wary though, the original diagnosis on mine was a random misfire but when I got the service report back, it showed as the #2 plug was the main culprit. 7000 miles later and I experienced the same exact misfire again, CEL flashing, etc. I took it back tot he dealer and the #2 COP was failing. So, that was a portion of the original problem. I negotiated the dealership's failure to properly diagnose the issue and got them to reduce the bill significantly for COP change. They verified the COP failure by swapping out COP's from other cylinders.
This isn't a horrible issue and it's an easy repair. The EB are inherently tough on plugs.
Thread Starter
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Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
OK.
1. What plugs for my 2012 EB? Do you by chance have a part number?
2. I'm going to replace the plugs-only first, then check the performance.
CMOS
1. What plugs for my 2012 EB? Do you by chance have a part number?
2. I'm going to replace the plugs-only first, then check the performance.
CMOS
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Senior User
Joined: Mar 2015
Posts: 140
Likes: 0
From: Boston
These are the motorcraft plugs
https://www.amazon.com/gp/aw/d/B009B...R227PB1P44DN2J
Here are the boots if you wanted to do those too
https://www.amazon.com/gp/aw/d/B008B...BN3GS349DAAK8Z
This is also very helpful
https://www.amazon.com/gp/aw/d/B009B...R227PB1P44DN2J
Here are the boots if you wanted to do those too
https://www.amazon.com/gp/aw/d/B008B...BN3GS349DAAK8Z
This is also very helpful
Last edited by Liam_Harrow; Nov 24, 2016 at 09:15 AM. Reason: Added info
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Thread Starter
|
Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
These are the motorcraft plugs
https://www.amazon.com/gp/aw/d/B009B...R227PB1P44DN2J
Here are the boots if you wanted to do those too
https://www.amazon.com/gp/aw/d/B008B...BN3GS349DAAK8Z
This is also very helpful
https://m.youtube.com/watch?v=A042BqRDHTc
https://www.amazon.com/gp/aw/d/B009B...R227PB1P44DN2J
Here are the boots if you wanted to do those too
https://www.amazon.com/gp/aw/d/B008B...BN3GS349DAAK8Z
This is also very helpful
https://m.youtube.com/watch?v=A042BqRDHTc
Great. I just ordered the 6 plugs and all new boots.
CMOS
Elder User
Joined: May 2011
Posts: 551
Likes: 4
Howdy All,
I've had this 2012 for several months now but have never really romped on the throttle until yesterday's road trip (not a lead foot driver).
I was driving on the highway at about 55 when I needed to pass so I floored the throttle and - the truck bucked like a wild horse and the power dropped to a low acceleration. Once I backed off the throttle to about half-way the engine took off like "normal".
These symptoms were repeatable throughout my entire 500 mile trip. Is this a known issue with the EB?
Thoughts?
CMOS
I've had this 2012 for several months now but have never really romped on the throttle until yesterday's road trip (not a lead foot driver).
I was driving on the highway at about 55 when I needed to pass so I floored the throttle and - the truck bucked like a wild horse and the power dropped to a low acceleration. Once I backed off the throttle to about half-way the engine took off like "normal".
These symptoms were repeatable throughout my entire 500 mile trip. Is this a known issue with the EB?
Thoughts?
CMOS
Thread Starter
|
Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
Nice. I should receive my parts later this afternoon, and will do the install after church tomorrow.
Can anyone give me a technical explanation of what causes this issue? Is the problem the plugs themselves, or the boot dielectric breaking down causing a spark short to the head???
CMOS
Thread Starter
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Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
Update: back to full power.
I changed all the plugs and all the boots. The "old" plugs were consistent in their appearance but did have a large gap, all were at least .040.
Thanks for all the help.
CMOS
I changed all the plugs and all the boots. The "old" plugs were consistent in their appearance but did have a large gap, all were at least .040.
Thanks for all the help.
CMOS
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