2011+ 55-60mph 5.0 Shuddering and EcoBoost Engine Miss/Loss of Power - Possible Fixes
Senior Member
Joined: Jun 2012
Posts: 149
Likes: 27
This is not fuel related. I have filled from several name brand, high volume stations on a regular basis, anything from 87 octane to 92 octane ethanol free. I fill up about once every week to a week and a half. Shudder has occured any time the temp is mid 50's or less with a dew point within 4 degrees, regardless of fuel used. It is also not related to Winter blend as I have had the shudder occuring right now on cooler mornings. If it was fuel wouldn't it happen year round, in any conditions? Its amazing that once the temp hit the low 50's with the dew point very close, my shudder returned after being non-existent for months.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
Senior Member
Joined: Dec 2011
Posts: 134
Likes: 21
From: SE MN
Feel free to drive up here and fill up with any Top Tier regular 87-octane or higher ETHANOL blended fuel. I'd suggest Ultra-94.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
Senior Member
Joined: Nov 2011
Posts: 1,535
Likes: 204
From: Albertville, MN
Feel free to drive up here and fill up with any Top Tier regular 87-octane or higher ETHANOL blended fuel. I'd suggest Ultra-94.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
I'm a big Ford fan too, but its foolish to believe people are not having real issues and this is related to fuel quality, just because you bleed blue. Don't know what else to say to convince you of this, ran the same gas all last Winter with the misfire issues, when it warmed up they are gone, cooling off again they are returning.
Senior Member
Joined: Mar 2011
Posts: 283
Likes: 8
Originally Posted by VoiseofReason 
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics.
Member
Joined: Feb 2012
Posts: 85
Likes: 4
On second thought you must work for Exxon or Ford 
Fuel the cause? Seriously? So Ford is selling a truck that requires 91+ octane, ethanol free gas? LOL Perhaps we all should be burning race gas ... I'll order up a tanker full this morning ... and write a letter to the government requesting the stoppage of ethanol based fuels for the sake of my Ford Ecoboost engine.
Fuel the cause? Seriously? So Ford is selling a truck that requires 91+ octane, ethanol free gas? LOL Perhaps we all should be burning race gas ... I'll order up a tanker full this morning ... and write a letter to the government requesting the stoppage of ethanol based fuels for the sake of my Ford Ecoboost engine.Feel free to drive up here and fill up with any Top Tier regular 87-octane or higher ETHANOL blended fuel. I'd suggest Ultra-94.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
Senior Member
Joined: Dec 2011
Posts: 155
Likes: 11
Originally Posted by VoiceOfReason
Feel free to drive up here and fill up with any Top Tier regular 87-octane or higher ETHANOL blended fuel. I'd suggest Ultra-94.
FYI: My truck hates Shell fuels. Shell 87 is 10% Ethanol ran OK. 89 is 5% shudder and power loss. V-Power 91 is Ethanol-free, **** mileage, shudder, and power loss. Numerous tests.
Ford is probably telling you "it's a normal characteristic of the truck" because it's good business tactics. If they told you something like "it's not the truck, you must be driving it wrong," the showroom would quickly be set on fire by irate, pissed off, offended owners.
Kinda like some ******* named VoiceofReason coming in here and just being straight to the point with facts. Pisses people off.
Ethanol is bad for long term storage, hard on 2-stroke motors, etc. etc. because it pulls substantially more moisture out of the gasoline than other oxygenates like MTBE. It then phases (basically creates separate pockets of gas and water/ethanol) and will shear the oil from the cylinder walls of 2-stroke motors.
Most people claim they don't like it because it has a lower BTU content so they think they're getting less power from it, completely missing the fact that if the engine is choking on water it won't be producing much of anything other than steam.
Do you work for Ford? What is your creditability to be able to say what will fix everyone's drive ability problems is fuel when most of us are telling you that is not the case. That is our facts...
If the fuel type is what has helped you great but don't keep telling everyone else here we are stupid and to get a clue because what worked for you didn't work for the rest of us.
Member
Joined: Oct 2011
Posts: 60
Likes: 1
From: Canton, GA
2 months into buyback but have some things to ad
OK, Buyback is BS. You will be passed from case worker of one dept to caseworker from another dept then your local dealership and weeks go by with all parties acting helpless and confused while a Ford-imposed 30 day timeline ticks away. What happens after 30 days? I'm about to find out.
It's been 2 months since the engineer ride-along proved my truck is not right. Ford approved the buyback and now, for some strange reason, I'm still in this POS.
Go Lemon law if you sense your case is going to get dragged on by all involved parties. My time is valuable and after 130 touches (phone calls, emails, visits to the dealer), I'm still in this broken truck. Get a lawyer and do it right.
As for the gas questions. There are over 14 blend of fuel available in the US. Not octanes; Blends. This truck is very sensitive to different blends.
I did an experiement. High octane: truck ran badly for 200 miles of shuddering and poor mpg, it smoothed a little and mpg started to get better. After second tank of premium, MPG went from 17.5 to 19.0.
Then I switched to 87, truck ran poorly, MPG went down. After 200 miles MPG went up a bit and by second tank truck moothed out a little bit and MPG stabilised around 17.5.
Then I filled up with 87 octane from BJ's - MPG went to 16 and truck shuddered more for a while. Second tank from BJ's - MPG went back to 17.5 and shuddering smoothed out a little.
I filled up at my local BP and truck ran poorly for 200 miles. After second tank the MPG went back to 17.5 and shuddering smoothed out a little.
It seems the ecoboost needs to adjust every time a different octane or blend of fuel is introduced. I decided to stick with 87 octane and one gas provider and my fuel economy is actually still improving from a 15,000 mile average of 17.5 to 20,000 mile average of almost 18 mpg.
Just my 2 cents.
It's been 2 months since the engineer ride-along proved my truck is not right. Ford approved the buyback and now, for some strange reason, I'm still in this POS.
Go Lemon law if you sense your case is going to get dragged on by all involved parties. My time is valuable and after 130 touches (phone calls, emails, visits to the dealer), I'm still in this broken truck. Get a lawyer and do it right.
As for the gas questions. There are over 14 blend of fuel available in the US. Not octanes; Blends. This truck is very sensitive to different blends.
I did an experiement. High octane: truck ran badly for 200 miles of shuddering and poor mpg, it smoothed a little and mpg started to get better. After second tank of premium, MPG went from 17.5 to 19.0.
Then I switched to 87, truck ran poorly, MPG went down. After 200 miles MPG went up a bit and by second tank truck moothed out a little bit and MPG stabilised around 17.5.
Then I filled up with 87 octane from BJ's - MPG went to 16 and truck shuddered more for a while. Second tank from BJ's - MPG went back to 17.5 and shuddering smoothed out a little.
I filled up at my local BP and truck ran poorly for 200 miles. After second tank the MPG went back to 17.5 and shuddering smoothed out a little.
It seems the ecoboost needs to adjust every time a different octane or blend of fuel is introduced. I decided to stick with 87 octane and one gas provider and my fuel economy is actually still improving from a 15,000 mile average of 17.5 to 20,000 mile average of almost 18 mpg.
Just my 2 cents.