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2015 F150 ecoboost sputtering during heavy acceleration

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2015 F150 ecoboost sputtering during heavy acceleration

Old 11-30-2020, 12:53 PM
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Default 2015 F150 ecoboost sputtering during heavy acceleration

While passing a car on a two lane road my truck sputtered when I floored the pedal. A faint yellow engine warning light came on for 30 seconds and then turned off. The truck has 113k miles. I would like to have an idea of what is going on before I take it to the local Ford dealership.
Old 11-30-2020, 12:57 PM
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I had similar issue: 2013 F150 3.5 Ecoboost Limp Mode - Help

Went to Autozone. They read the codes:

P2111 - Throttle Actuator Control System Stuck Open
P2112 - Throttle Actuator Control System Stuck Closed

I replaced the throttle body and the gasket. All better. Get your codes and go from there.
Old 11-30-2020, 12:57 PM
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Probably a leak in the turbo system. Several videos on youtube showing some basic diagnosis. First step would be a scanner to see what codes you have with engine light.
Old 11-30-2020, 03:37 PM
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I didn't know autozone would read codes. I will stop at one tomorrow.
Old 11-30-2020, 04:56 PM
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It was actually O’Reillys. But all of them should be able to plug in the diagnostic reader and give you the code(s)
Old 11-30-2020, 04:57 PM
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When were the plugs changed last? If it smoothed out after flooring it, I would guess the plugs or coils.
Old 11-30-2020, 05:51 PM
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Originally Posted by RY54 View Post
When were the plugs changed last? If it smoothed out after flooring it, I would guess the plugs or coils.
Never.
Old 11-30-2020, 06:00 PM
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Originally Posted by Tireless View Post
I didn't know autozone would read codes. I will stop at one tomorrow.
I have one of these for diagnosing stuff.

Amazon Amazon


This plus a free app on your phone works great to display and clear codes, along with read out a lot of data. I think the free app only works on android though, but there may be a iPhone version.
Old 11-30-2020, 07:29 PM
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Originally Posted by Tireless View Post
I didn't know autozone would read codes. I will stop at one tomorrow.
You can buy a code reader for $ 40. A good investment for any Ford owner.
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Old 11-30-2020, 07:31 PM
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Originally Posted by RY54 View Post
When were the plugs changed last? If it smoothed out after flooring it, I would guess the plugs or coils.
I was experiencing the same symptoms on my 2012 Ecoboost by 60k miles. I changed the plugs and boots and all was back to normal. Plenty of DIY info including part numbers to be found on the internet.

Also, the smartphone OBD adapters are pretty handy for reading codes and other data, plus you can change settings in the truck's computer.
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Old 11-30-2020, 07:32 PM
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Originally Posted by Tireless View Post
I didn't know autozone would read codes. I will stop at one tomorrow.
probably a misfire code, especially if it hasnt had tune-up yet....
sparkplugs & coil boots.
p0300, p0301, p0302, p0303, p0304, p0305, p0306
or multiple...

overdue for a tune,
Old 11-30-2020, 09:39 PM
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Condensation in the air from the CAC. google it
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Old 12-01-2020, 05:19 AM
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Based on past experience, I'll add a vote for plugs or coils.
Old 12-01-2020, 05:49 AM
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Very likely plugs. From all the reading I’ve done a catch can is a worthy (and cheap) addition to that generation EB and helps avoid a lot of long term carbon related problems.
Old 12-01-2020, 06:26 AM
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Originally Posted by Bmach View Post
Condensation in the air from the CAC. google it
Really surprised if it's not this, condensation in the air plenum is well documented on the internet with the ecoboost.
Old 12-01-2020, 10:31 AM
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AutoZone device only reads active codes. I guess I am off to Ford.

I will ask about the CAC condensation issue before they try to gouge me.

Last edited by Tireless; 12-01-2020 at 04:16 PM.
Old 12-01-2020, 10:51 AM
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Lots of inexpensive obd2 code readers can also read stored or pending codes. I have the Autel AutoLink Al319 Obd2 Scanner @ $35 . Usually sold at auto parts Stores or Walmart. This model even displays live data.

Tried the Bluetooth ones years ago and didn't like glitchy software, connection issues or installing additional apps.
Old 12-01-2020, 10:52 AM
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Had exact same thing happen with a 2011. Ended up being bad coil pack and plug.
Old 12-02-2020, 01:35 PM
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Had the same thing on my 2015 F150 Eco (50K miles)...turned out to be plugs and boots and was likely caused by the condensation build up. I bought a catch can as well but haven't installed it as yet. This issue seems to be well documented.
Old 12-02-2020, 10:52 PM
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Originally Posted by autobaun70 View Post
Very likely plugs. From all the reading I’ve done a catch can is a worthy (and cheap) addition to that generation EB and helps avoid a lot of long term carbon related problems.
Catch cans are the snake oils of the automotive world. Pull up a forum dedicated to any certain vehicle, and there will be a massive catch can thread illustrating how important they are for that particular vehicle.

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