6.7 Hesitation When Cold - Ford Powerstroke Diesel Forum

6.7 Motor Problems 6.7 Motor Problems

 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 01-31-2014, 11:04 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2014
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
6.7 Hesitation When Cold

I have a new-to-me 2011 F350 6.7. After a cold start and during light acceleration it will hesitate. It's as if fuel/motor shuts off just for a second. This happens just after pulling away from the first stop after startup, and usually during a turn.

Before you flame me, I know there are about 5 or 6 previous threads describing a similar issue. Those threads have died off without any resolution or turned into another issue, usually the violent bucking that seems to be associated with a head gasket (not the issue here).

Has anyone found a solution to this particular issue yet? It's been around since 2011 on this forum with no resolution that I could find.

Thanks for any help on this (as well as the many answers I've found here previously)
Ldnpd is offline  
post #2 of 10 Old 01-31-2014, 11:51 AM
Compression Ignition Addict
 
fordtrix's Avatar
 
Join Date: Mar 2013
Posts: 626
Thanks: 7
Thanked 23 Times in 23 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
How soon after the cold start?

Like, is it 5 degrees out, you hop in, start, and drive off, and it does this? Or is that after truck has been warmed up a bit, then still does this?

2013 F250 Lariat CCSB - Firestone Ride Rite, Bakflip F1, B&W 5th Wheel Hitch, Carli 2.5" with track bar, Fuel Maverick 20x9, Toyo MT 35x12.5, Bushwhacker Extend-A-Fender, Weathertech Mats, Recon 3rd Brake and Mirror Lights, PTM Mirror Caps

2013 Crossroads Elevation 3912 - Loaded
fordtrix is offline  
post #3 of 10 Old 01-31-2014, 12:20 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2014
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Within 30 seconds after start up. Not particularly cold weather. I'm in southern California so 50 is cold. After a minute or two of driving it won't happen again.
Ldnpd is offline  
post #4 of 10 Old 01-31-2014, 12:38 PM
Compression Ignition Addict
 
fordtrix's Avatar
 
Join Date: Mar 2013
Posts: 626
Thanks: 7
Thanked 23 Times in 23 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Ldnpd View Post
Within 30 seconds after start up. Not particularly cold weather. I'm in southern California so 50 is cold. After a minute or two of driving it won't happen again.
Hmm, that is odd, I could see in like freezing weather, sub zero, etc. it doesn't always run quite up to par right off the bat, but never any issues at temperatures like you mention.

2013 F250 Lariat CCSB - Firestone Ride Rite, Bakflip F1, B&W 5th Wheel Hitch, Carli 2.5" with track bar, Fuel Maverick 20x9, Toyo MT 35x12.5, Bushwhacker Extend-A-Fender, Weathertech Mats, Recon 3rd Brake and Mirror Lights, PTM Mirror Caps

2013 Crossroads Elevation 3912 - Loaded
fordtrix is offline  
post #5 of 10 Old 02-01-2014, 09:23 AM
Member
 
Join Date: Dec 2011
Posts: 49
Thanks: 7
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Ldnpd View Post
I have a new-to-me 2011 F350 6.7. After a cold start and during light acceleration it will hesitate. It's as if fuel/motor shuts off just for a second. This happens just after pulling away from the first stop after startup, and usually during a turn.

Before you flame me, I know there are about 5 or 6 previous threads describing a similar issue. Those threads have died off without any resolution or turned into another issue, usually the violent bucking that seems to be associated with a head gasket (not the issue here).

Has anyone found a solution to this particular issue yet? It's been around since 2011 on this forum with no resolution that I could find.

Thanks for any help on this (as well as the many answers I've found here previously)
Not sure. But asking and discussing on these forums is the best place to start. About everything I ever learned about the issues with all the diesels has come from the forums, good independent diesel mechanics and the aftermarket world in general. If it were not for all of those folks Ford would still be trying to tell us there were no problems with the 6.0
That said I would find out from word of mouth who your good local independent diesel mechanics are and go see one. It's probably too simple to just confirm good fuel, water separator is drained, clean oil, good engine coolant, clean air filter, maybe run a little fuel additive like PS, tight connections/fittings under the hood but always helps to just keep everything clean and tidy. I'm old fashioned changing oil every 3000 miles, changing coolant/other fluids/air filters always earlier than Ford recommends.
BTW - it's an engine hesitation not a transmission shifting delay? My 2011 6.7 sometimes felt like engine was dropping power output just about time would shift, was usually from stop or slow roll. If I put the truck in tow mode, although not towing, it seemed was a smoother shift from first and did not sense the engine dropping power/cutting out slightly.
Good luck let us know what you figure out.
MT4x4 is offline  
post #6 of 10 Old 02-01-2014, 01:43 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2014
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks fordtrix and MT4X4, I'll definitely post if it gets resolved. I don't think it's tranny, but I know these things sometimes fool you. The motor noise drops off when it happens so I'm believing it's abrupt, momentary power loss.
Ldnpd is offline  
post #7 of 10 Old 02-18-2014, 04:16 AM
Powerstroke.org Rookie
 
Join Date: Sep 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Im not sure what causes it , but I don't think it is anything serious or even to be concerned about for that matter. I own a 2011 6.7 and know of 8 other people that I deal with on a daily basis and ALL have had this happen at some point in time and most quite often. It usually happens during colder temps but not always. Mine did it the other morning and it was 65 degrees at the time. My business partner just bought a brand new one about 5 months ago and his has did it half a dozen times at least, some during cold temps and some during mild temps. Im not saying evrybodys does it but I think a big percentage does. I talked to my local Ford dealerships diesel tech and he said that it seems to be pretty common and they can find no reason for it. He said he believes it must have something to do with the air /fuel mixture at a given time ( literally a split second)but not sure what and as he said, that's just an educated guess at best! Local diesel shop pretty much said the same as for it being common but also said he isn't sure what causes it but feels its nothing to be concerned with. He said there is lots of guesses out there on what actually causes it but no solid answer with facts to back it up.
Hydrophilic is offline  
post #8 of 10 Old 02-19-2014, 02:52 AM
Compression Ignition Addict
 
Join Date: Jul 2013
Posts: 608
Thanks: 19
Thanked 34 Times in 31 Posts
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Feedback Score: 0 reviews
My 2013 does it too. Since day 1 almost every time I start it up and take off. Mines does it in warm or cold weather. Kind of annoying but I'm not worried about it. Def not going to let the dealer jack with it just for this.


Sent from AutoGuide.com App
Deerhunter4 is offline  
post #9 of 10 Old 02-19-2014, 05:56 AM
Compression Ignition Addict
 
Join Date: Aug 2012
Posts: 181
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
it should do that to give you time to hold on

2012 f250 Ultimate Lariat, 6.7 powerstroke
Hunter69 is offline  
post #10 of 10 Old 03-20-2014, 06:01 PM
dennis49
Guest
 
Posts: n/a
Mentioned: Post(s)
Quoted: Post(s)
Quote:
Originally Posted by Deerhunter4 View Post
My 2013 does it too. Since day 1 almost every time I start it up and take off. Mines does it in warm or cold weather. Kind of annoying but I'm not worried about it. Def not going to let the dealer jack with it just for this.


Sent from AutoGuide.com App
My 2012 f350 has done the same thing from day 1. dealer put in new turbo still does it. Most of the time it hesitates when I make a left turn or going slow like in a parking lot.
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome