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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Tranny help!

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Old Oct 6, 2010 | 08:33 PM
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Tranny help!

Hey I've noticed that my transmission after a good 2 hours or more of driving in 4th and i need to downshift to 3rd, it will slip. It's really really rare that this happens but I want to figure out if a fluid change will help this. I added fluid because it was low(because the seal between the shaft and tranny is bad). I haven't been driving long enough periods to see if this fixed it.

It's a 1993 F150 Flareside with 155k miles. When I test drove it, the fluid color looked fine, smelled ok and wasn't dark at all. So I'm not sure. I'm going to try and get a flush and my brothers shop as soon as I quit working 50+ hours a week.
 
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Old Oct 6, 2010 | 08:37 PM
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I believe the tranny is the AOD because it says "Ford" with "Automatic Overdrive" in cursive on the pan.

(I'd edit my post but this forum logs me out as soon as the page finishes loading.)
 
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Old Oct 7, 2010 | 08:11 AM
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How many bolts on the pan?

I never have any issues with editing posts.
 
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Old Oct 7, 2010 | 10:27 AM
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Bolt number is irrelevant. Both the AOD and AODE use a 14 bolt pan....If it is indeed a 14 bolt pan does it have an OD button on the end of the shifter? If it's an AOD, it will have OD D 2 1 on the dash.



 
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Old Oct 7, 2010 | 05:31 PM
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My shifter has P R N D with outline and D without the outline. Which I assume the no outline is overdrive off. I'll look after I get this concert practice done.
 
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Old Oct 7, 2010 | 06:30 PM
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It's a 14 bolt pattern, but the truck is a 1993. doesn't make sense.
 
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Old Oct 7, 2010 | 08:51 PM
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Doesn't matter, you've got an AOD.
 
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Old Oct 7, 2010 | 11:10 PM
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The picture you just posted shows that bolt number is not irrelevant. I don't know why you said that it was.
 
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Old Oct 9, 2010 | 12:31 PM
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I said the bolt number is irrelevant because both the AOD and AODE use a 14 bolt pan, but they are NOT the same pan, the bolt placement is slightly different. Hence the reason I asked about the shift layout on the dash. Case in point:

 
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Old Oct 10, 2010 | 04:39 AM
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Your right about that. Well the reason I said that is because alot of people think that just because its an overdrive automatic that its an AOD. Some of them end up having an E40D.
 
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Old Oct 10, 2010 | 03:35 PM
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Ah, believe me I understand....the even rarer few such as me and yourself have the AODE. To the OP, mine will do the same thing sometimes if I've been driving a while or idling for a little while, My only guess is the transmission fluid is heating up. You might want to think about upgrading your cooler. I just need to route mine away from the exhaust pipes.

EDIT: Nice clean truck TexasGuy
 
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