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Old Oct 9, 2006 | 08:03 AM
  #1  
kuzindwight's Avatar
kuzindwight
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From: Fort Irwin, CA
Stupid question

With all your help I have the truck running smooth now.

I am curious of one thing. At what speed is it considered normal for the C6 tranny to shift into 3rd. The sweet spot on my truck seems to be 45 - 50 MPH. It is now shifting smooth, it just feels late to me.

I haven't driven my F250 in over a year and I think I'm comfortable with my HMMWV (Hummer) shift timing rom Iraq.

Jaysen
84 F250 with a C6 3-speed auto-tranny
 
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Old Oct 9, 2006 | 08:54 AM
  #2  
PLC7.3's Avatar
PLC7.3
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From: Manitoba
Have you reset/checked the VRV on the IP..........how is the vacuum in the system 21hg...
 
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Old Oct 9, 2006 | 02:36 PM
  #3  
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dwaymar
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mine shifts arounf 40 to 45 into third and its smooth as long as i keep my foot out of it
 
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Old Oct 10, 2006 | 04:08 PM
  #4  
kuzindwight's Avatar
kuzindwight
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From: Fort Irwin, CA
I check this morning. It is showing 25 Hg. I assume that is good.

Jaysen
 
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Old Oct 11, 2006 | 10:58 AM
  #5  
tjc transport's Avatar
tjc transport
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25 inches of vacuum is good.
my 88 shifts to third at 45-50 if i am on it.
 
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Old Oct 11, 2006 | 01:07 PM
  #6  
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Agemenon
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From: Edmonton, Alberta Canada
Mine shifts at about 50, that should give you a clear picture.
 
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Old Oct 11, 2006 | 09:05 PM
  #7  
kuzindwight's Avatar
kuzindwight
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From: Fort Irwin, CA
Thanks guys. I guess the diagnosis is I, or at least my truck, is normal.
 
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