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I bought a 2011 F250 6.2 engine, I sense a pulsation will…

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I bought a 2011...

I bought a 2011 F250 6.2 engine, I sense a pulsation will accelerating and steady running down the road, more pronounced will going upgrade. Local mechanic says his computer shows irregular ethanol content in fuel. Could this cause the issue and is there a sensor causing the problem. It is only averaging 11.5 mpg.

Mechanic's Assistant: Which particular sensor are you asking about? And have any trouble codes been triggered?

No codes, and just asking what would cause the irregular ethanol. Could this cause the pulsations

Mechanic's Assistant: Are you fixing your F250 yourself? What have you tried so far?

I have had it to the local Ford dealer and also a local shop. They are not finding what would cause this.

Submitted: 25 days ago.Category: Ford
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Answered in 8 minutes by:
5/31/2018
Ford Mechanic: Scott W., Ford Technician replied 25 days ago
Scott W.
Scott W., Ford Technician
Category: Ford
Satisfied Customers: 3,602
Experience: 28 yrs. experience as Ford ASE Master Technician. Accolades include being a 2005 Ford PTS Regional Finalist and 2006 ASE Ford National Technician.
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Hello my name is ***** ***** the engine idle smooth? Does it feel like a misfire?

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Customer reply replied 25 days ago
Smooth, no miss fire but cold weather start was very rich and would foul out. Needed 30 sec idle to work
Ford Mechanic: Scott W., Ford Technician replied 25 days ago

That was a computer generated response for a phone call.

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Ford Mechanic: Scott W., Ford Technician replied 25 days ago

What is the exact code you are getting from the PCM?

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Ford Mechanic: Scott W., Ford Technician replied 25 days ago

Can I have your VIN to check for known concerns on the Ford system?

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Ford Mechanic: Scott W., Ford Technician replied 25 days ago

I am waiting on your VIN number.

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Ford Mechanic: Scott W., Ford Technician replied 25 days ago

Do you your VIN number handy?

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Customer reply replied 25 days ago
Please call tomorrow any time after 6:30 am
Ford Mechanic: Gary, ASE Certified Technician replied 25 days ago
Gary
Gary, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,826
Experience: Senior Technician
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Has anybody taken a fuel sample, and analysed for high water content or ethanol mix?

This could be related to your fuel station supplier.

Gary

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Customer reply replied 25 days ago
No fuel analysis but have gone thru many tanks including high test gas. Sorry I don’t have the vin handy but will send it in the morning
Ford Mechanic: Gary, ASE Certified Technician replied 25 days ago

And it still does this issue if you change your station of purchase?

Doesn't really sound fuel quality related.

What other issues doe it have?

Low power at all?

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Customer reply replied 25 days ago
No, good power, no other issues but poor mpg for the engine
Ford Mechanic: Daniel, Manager replied 25 days ago
Daniel
Daniel, Manager
Category: Ford
Satisfied Customers: 172
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Phone call session started
Ford Mechanic: Gary, ASE Certified Technician replied 25 days ago

Ok, sounds like some driving with a scan tool is needed to look at fuel trims, O2 sensor operation etc.

And then also take into account driving style, types of cycles, many cold starts, short trips etc, or city/highway combined, towing etc.

I will opt out now, since I can't offer much else to you today.

Gary

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Customer reply replied 25 days ago
Thanks Gary
Customer reply replied 25 days ago
Can ee wait until tomorrow morning, please. Thanks
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 25 days ago
HDGENE
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 6,518
Experience: 28 years Auto experience, Ford ,GM, Chrysler, Asian & European
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Hello I can be of help if you post the vin number. No modifications to the engine, its all stock? How many miles are on the engine? Yes an off ethanol reading can cause issues. It didnt have any trouble codes stored, just looking at a ethanol stored value said it was off by what amount?

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Customer reply replied 25 days ago
Will grt the bin no. tomorrow morning. Thanks
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 25 days ago

Ok just post it when you can any any information regarding the ethanol reading please. You feel it pulse in the gas pedal or from the engine while driving.

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Customer reply replied 24 days ago
Vin no. 1FT7X2B63BEA38237
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 24 days ago
Ok what about where or how you feel this pulsing and the ethanol content. What kind of fuel are you using. Is the truck all stock no mods done??
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Customer reply replied 24 days ago
Ok
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 24 days ago
Um. That doesn't answer any thing I'm asking you about this problem. The more info you can relay to me. The better I'll be able to offer a possible solution.
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Customer reply replied 24 days ago
I will be unavailable for the next 6 hrs
Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 24 days ago
That's fine but I won't be able to tell you anything without you telling me more
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Ford Mechanic: HDGENE, Ford Senior Master/Diesel/Trans replied 23 days ago

Hello, do you still need help? I can help if you answer some of my questions

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Customer reply replied 23 days ago
No thanks
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