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Discussion Starter · #1 ·
Quick question....I've been doing some reading about people having some similar issues like I've had with my tranny over the past few weeks. For some reason, it feels like my tranny isn't shifting where it should, shifting hard, and just recently, I was traveling out to a freinds camp, driving on some hilly backroads, unless I moderately pressed on the gas while going up hills, the tranny couldn't make up its mind about what gear to be in.... :confused:

The first quick fix I have read on here is to disconnect your battery and let your computer "re-learn" it's shift points and such....is there any specific time you have to let the battery stay disconnected to erase previous settings? Also, after resetting, is there any particular driving habits I should observe while the computer adjusts? :shrug:

Any ideas would be appreciated! I have one of those U.S. Fidias warranties....(I know I know...I was nervous with the high mileage..) but it has no deductabile and apparently covers tranny issues.....so any ideas would be great. :)

Thanks!
 

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Five minutes with the battery disconnected should do. Follow the idle-relearn procedure outlined in the owner's manual.

I would do a drain-and-fill with Mercon/Dexron III once a week for the next three weeks, or do it in one go using Prowler's patented 7-6-3 method:
-Drain 4 quarts from the pan
-Overfill by adding 7 quarts
-Remove cooler line and pump out 6 quarts
-Add 3 quarts
 

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When was your last fluid change for the transmission? Common consensus is it should changed every 30k miles or so. Mine was doing what you said at 29k. After a fluid change at 31k, it went away. It recently started shifting hard again at about 64k so I had it changed again. A few hundred miles later it's better.
 

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Discussion Starter · #4 ·
My last tranny flush and fill, which my local Ford Dealership told me was the "B.G. Certified" service where they put the machine on the tranny and run all the fluid out was about 17k miles ago. Concidering the high miliage (132k)...should I bring it in again? :shrug:
 

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Did the machine do any backflushing, chemical flushing, or high-pressure flushing? Do you know when the service was before your previous one?
 

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Discussion Starter · #6 ·
Squishy said:
Did the machine do any backflushing, chemical flushing, or high-pressure flushing? Do you know when the service was before your previous one?
I dont know what they did :shrug: other then they hooked the truck up to the machine and "ran" new fluid throughout the system. As far as how they did, I would call and ask but they are closed for the night. I checked out BG's website to see if their website would say what they do exactly during their transmission services, but couldn't find anything...As far as the last time it was flushed before then, it was my Mom's truck before I got it, so without looking at my paperwork...I think it was at least another 30k before I had it done when I bought it off her.

I have no problem going to get another transmission service done, I just don't want to waste 100 bucks if it won't do anything..I'm sure it couldn't hurt though....what do you guys think?
 

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Oh, a "transmission flush" definitely can hurt. Any sort of chemical flush, back-flush, or high-pressure flushing procedures should be avoided on higher mileage transmissions.

A few years ago there were a rash of transmission failures after adding Mercon V to a CD4E transmission originally filled with Mercon, although Ford claims to have fixed any incompatibilities with a new formula. Since you're experiencing problems after a flush, I would immediately switch back to Mercon. The dealership will only put Mercon V in, as the Mercon licences have expired and that fluid no longer exists as far as Ford is concerned.
 

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Discussion Starter · #9 ·
Squishy said:
Oh, a "transmission flush" definitely can hurt. Any sort of chemical flush, back-flush, or high-pressure flushing procedures should be avoided on higher mileage transmissions.

A few years ago there were a rash of transmission failures after adding Mercon V to a CD4E transmission originally filled with Mercon, although Ford claims to have fixed any incompatibilities with a new formula. Since you're experiencing problems after a flush, I would immediately switch back to Mercon. The dealership will only put Mercon V in, as the Mercon licences have expired and that fluid no longer exists as far as Ford is concerned.
Wow I had no idea, thanks Squishy! I think I'm gonna go head and start the three week process of draining and filling and see where that gets me...
 

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Squishy said:
Oh, a "transmission flush" definitely can hurt. Any sort of chemical flush, back-flush, or high-pressure flushing procedures should be avoided on higher mileage transmissions.

A few years ago there were a rash of transmission failures after adding Mercon V to a CD4E transmission originally filled with Mercon, although Ford claims to have fixed any incompatibilities with a new formula. Since you're experiencing problems after a flush, I would immediately switch back to Mercon. The dealership will only put Mercon V in, as the Mercon licences have expired and that fluid no longer exists as far as Ford is concerned.
I posted a question in a different thread about the drain fill using merc v in an 05 limited, thinking mercron was no longer available.So now my question is :If mercon is available should I stick with that ,and if so would you recomend a brand ? Thanks
 
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