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Discussion Starter #1
Hello everyone,

I am a new member and have not posted here before.

We have a 2008 Ford Focus 2.0L with automatic transmission. I am looking to put in a new transmission and am wondering if early2000s-2007 4F27E transmissions are interchangeable? I noticed the 1st generation models used Mercon V fluid and ours uses Mercon LV.

I went the shift solenoid route and changed them, but with no luck. Shifting has been delayed for gears 1-2 (the car will start moving from a stop and the RPMs keep climbing, with no shift when it's supposed to) and then when finally cruising at 60MPH, the gear 'drops out' and the car starts revving. Time for a new tranny I think.

Thank you for the info.
 

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2000 to 2004 can be interchanged
2005 to 2007 can be interchanged
2008 to 20?? can be interchanged

I do not know what the difference is between these years; only that there is something different that prevents (i.e.) a 2005 trans going into your 2008.

Must ensure new/rebuilt trans has the same final gear ratio # as the one in your car now.

If I was you, I would call any Ford dealership (or a trans specialist shop) for verification of interchange-ability on your 2008.

Pic below is for 1999 to 2004, but might help a tad-bit.
 

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Be very leery when the basic trans fluid changes, it often signifies a change in clutch pack materials.......................the V to LV thing.

That could mean even further changes in PCM software and operating parts.

Sounds from description like you may be having 2 and 4 problems, if so, the band can be broken or the servo piston to it commonly breaks the pin. Either can be fixed without yanking trans completely.
 

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Discussion Starter #4
It seems like there are a few things going on. When the vehicle is cold, it hesitates shifting from 1st to second gear. If we let up on the throttle, it'll eventually shift. Going into overdrive is hit-or-miss when cold. Sometimes it shifts fine, other times it'll hesitate too. Eventually, the 'monkey wrench' light will come on. When the 'monkey wrench' light comes on, it goes into a different shifting pattern. Overdrive is completely shut down and we only have gears 1 thru 3. Funny thing is: it seems to shift smooth in those gears. However, now I've noticed a burning smell from the transaxle. I found another unit and a friend who has the garage/lift/tools who will do the complete replacement very reasonable $$$. I'll have to post here how it goes.
 
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