funny shift from 2 to 3rd - Ford Powerstroke Diesel Forum
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post #1 of 24 Old 10-16-2009, 05:39 AM Thread Starter
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funny shift from 2 to 3rd

In the morning when i get in my truck i leave the driveway and the 1 to 2nd shift is perfect then 2-3 it feels like its trying to start to shift then after half a second goes into gear with a slight clunk. You hear the clunk more than you feel it though. As you drive the truck this issues almost completely goes away but you can still barely tell something is a little different from changing 2nd to 3rd gear. My truck has always done this some just seems a little worse now. If i go back to stock it still has this issue. Anyone else seen this issue or know how to fix it?

2008 Dark Stone F250 CC,4x4 Lariat, Job3, 3.73 gear
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post #2 of 24 Old 10-16-2009, 06:00 AM
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Sounds like your torque converter may be going bad. That's what mine was doing while it was shreading my tranny. But may be different since you got a 6.4

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post #3 of 24 Old 10-16-2009, 06:21 AM
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Shifts will be different on a cold transmission. On mine, almost more abrupt until it warms up a little. Also, and I don't remember the details, but the 2-3 shift is different than 1-2. Something to do with it being a more complicated action within the transmission. Have you checked your fluid levels recently? Levels that are slightly off can cause odd shifting.
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post #4 of 24 Old 01-08-2010, 02:04 PM
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I'm having a similar problem at WOT it sort of hesitates when i think its supposed to shift (3300 rpm) then shifts at around 3700 rpm which seems pretty high to me.

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post #5 of 24 Old 01-25-2010, 03:58 PM
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Quote:
Originally Posted by sawtooth1 View Post
In the morning when i get in my truck i leave the driveway and the 1 to 2nd shift is perfect then 2-3 it feels like its trying to start to shift then after half a second goes into gear with a slight clunk. You hear the clunk more than you feel it though. As you drive the truck this issues almost completely goes away but you can still barely tell something is a little different from changing 2nd to 3rd gear. My truck has always done this some just seems a little worse now. If i go back to stock it still has this issue. Anyone else seen this issue or know how to fix it?
I have a stock 2009 F-250 and mine does the same thing, it disappears just like yours too aftter it gets warm. I have a buddy that is a Ford salesman that sold me the truck. One of these mornings when we take off to go fishing or hunting I will ask him what that maybe or if he has heard of this problem before.
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post #6 of 24 Old 01-25-2010, 05:59 PM Thread Starter
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Originally Posted by border bandit32 View Post
I have a stock 2009 F-250 and mine does the same thing, it disappears just like yours too aftter it gets warm. I have a buddy that is a Ford salesman that sold me the truck. One of these mornings when we take off to go fishing or hunting I will ask him what that maybe or if he has heard of this problem before.


I actually have 22K on my truck now and at one point thought it might have gotten a little worse but now i don't think it has. The reason i'm saying this is last week i went back to the stock tune and it was a little better. I believe with Spartan its just a tad more noticable on the first shift of the morning then you don't notice it anymore. Its so light even then that passangers never pick up on it. So think its not an issue now.

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post #7 of 24 Old 03-12-2010, 01:17 PM
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*

I have a stock 2010 F-250 6.4L CC SWB SRW 4x4. As stated in the title of the thread, I'm hearing and feeling a slight knock/slap when the truck shifts from 2nd to 3rd. It only does it at 1500-1600 RPM and 20-21 mph. Under accelerations greater than about 1600 RPM it DOES NOT make this knock. It reminds me of the sound and feel of a locker locking going around a turn. I made an appointment to take it in on Monday, but just wanted to see what y'all think. Oh yeah, the truck has 3.55's and 8200 miles.

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post #8 of 24 Old 03-21-2010, 05:14 AM Thread Starter
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Originally Posted by A-5_Guy View Post
*

I have a stock 2010 F-250 6.4L CC SWB SRW 4x4. As stated in the title of the thread, I'm hearing and feeling a slight knock/slap when the truck shifts from 2nd to 3rd. It only does it at 1500-1600 RPM and 20-21 mph. Under accelerations greater than about 1600 RPM it DOES NOT make this knock. It reminds me of the sound and feel of a locker locking going around a turn. I made an appointment to take it in on Monday, but just wanted to see what y'all think. Oh yeah, the truck has 3.55's and 8200 miles.

How did this come out?

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post #9 of 24 Old 03-21-2010, 05:34 AM
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The shop foreman told me that it was normal. He said it had something to do with the clutches. I don't know if I totally believe him, but it seems like it might just be the way the truck operates. He let me drive a brand new '10 around the lot and it did the same thing. I'm not too concerned about it anymore....

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post #10 of 24 Old 03-21-2010, 05:28 PM Thread Starter
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Originally Posted by A-5_Guy View Post
The shop foreman told me that it was normal. He said it had something to do with the clutches. I don't know if I totally believe him, but it seems like it might just be the way the truck operates. He let me drive a brand new '10 around the lot and it did the same thing. I'm not too concerned about it anymore....

Man thats crazy. I would have not thought it was normal but i you drove another new one and its the same then he must be right. Thanks for the information.

2008 Dark Stone F250 CC,4x4 Lariat, Job3, 3.73 gear
Banks CAI
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