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6.7L Power Stroke Diesel 2011-2015 Ford Powerstroke 6.7 L turbo diesel engine

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  #346  
Old 01-09-2014, 04:44 PM
texas_21v texas_21v is offline
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My 2011 tranny works okay except for one thing. When it shifts into 3rd the RPMs climb normally and then it feels almost like a second shift happens. The indicator still says 3rd and the rpms drop slightly but then pick right up again until the shift to 4th. It's kinda like a hickup. This only happens in 3rd gear, 4th 5th and 6th shift fine. I have an aftermarket warranty which is supposed to be bumper to bumper so I'll have the dealer look at it. I was wondering if anyone else has this problem.

Second question. A friend of mine who had the same year truck told me if you hide the indicator display by pushing the up button, the truck uses a different shift program and will get better gas mileage which didn't make much sense to me. If this were a feature it would be in the manual.
The "hiccup" you feel is the torque converter locking up. Normal behavior for this transmission.
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Old 01-09-2014, 06:41 PM
EZDad EZDad is offline
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The torque converter locks up on 3rd gear? Usually that doesn't happen until top gear in most grannies. Educate me please
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  #348  
Old 01-09-2014, 06:43 PM
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The torque converter locks up on 3rd gear? Usually that doesn't happen until top gear in most grannies. Educate me please
That hasn't been true for a long time now. The 4R100, introduced in 1997, was capable of locking up the torque converter in every forward gear. I haven't driven a car or truck in recent memory that doesn't lock the torque converter in the lower gears.
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  #349  
Old 01-09-2014, 06:45 PM
Lococoin Lococoin is offline
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The torque converter locks up on 3rd gear? Usually that doesn't happen until top gear in most grannies. Educate me please
Yup and it will stay locked up until a really low rpm if u are coasting to a stop.
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  #350  
Old 01-09-2014, 06:47 PM
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Good to know. Thanks for the knowledge.
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  #351  
Old 01-10-2014, 07:12 AM
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Originally Posted by EZDad View Post
My 2011 tranny works okay except for one thing. When it shifts into 3rd the RPMs climb normally and then it feels almost like a second shift happens. The indicator still says 3rd and the rpms drop slightly but then pick right up again until the shift to 4th. It's kinda like a hickup. This only happens in 3rd gear, 4th 5th and 6th shift fine. I have an aftermarket warranty which is supposed to be bumper to bumper so I'll have the dealer look at it. I was wondering if anyone else has this problem.

Second question. A friend of mine who had the same year truck told me if you hide the indicator display by pushing the up button, the truck uses a different shift program and will get better gas mileage which didn't make much sense to me. If this were a feature it would be in the manual.
That's the first time I've heard that about the gear indicator. I can't see any benefit in Ford doing something like that and not publishing it.
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  #352  
Old 01-10-2014, 09:09 AM
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That's what I figured. My friend told me the service department told him that after working on his truck. It it were true it would have been an added feature on a reflash and I have never read anything about it so I gave him the same comment.

About that TQ lockup. My last truck was a GMC Sierra SLT with a 4 speed auto so that was my experience with truck trannies. Good to know it's working properly.

I will say that my 2011 F250 Super duty Lariat 6.7 beats the hell out of anything GM produces. I sat in a new 2500 and other than the steps in the bumper there was NOTHING I liked better. In fact it felt and looked nothing but cheap on the inside.
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  #353  
Old 01-10-2014, 09:13 AM
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Second question. A friend of mine who had the same year truck told me if you hide the indicator display by pushing the up button, the truck uses a different shift program and will get better gas mileage which didn't make much sense to me. If this were a feature it would be in the manual.
It doesn't make sense to you because it's simply not true. My 2011 F350 and '13 F150 have the same gear indicator, and it shifts the same regardless of whether it's showing or not. It just tells you what gear you're in, that's all.
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