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Focus trans in trasit connect

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i have a 2010 tc with a bad transmission i am trying too find out if anyone has put focus transmission in tc and what i have to do to make it work.

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Yes, I believe a few people on the forum have done this. The forum's search feature isn't the best but if you sift through it you'll find a few posts from the last couple of years.


My understanding (which is purely based on lurking on this forum, i.e. I haven't done this myself) is that the crux is the computer. Basically unless you get the exact same transmission, you're going to have to program the computer to play nice with the new transmission. Since there isn't much of an enthusiast market for the Transit Connect, you can't get software to do this yourself. So you're either going to have to convince a dealership to do the programming for you or swap the computer from the donor car as well.


If you're swapping in the donor's computer then it becomes a question of whether you can program that computer to play nice with your existing engine or if you're going to have to swap the engine too.


Here's a thread where the OP swapped the transmission, engine, and computer from the donor: https://fordtransitconnectforum.com/topic/5516-2014-tc-manual-conversion/

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A complete engine & transmission swap may not be feasible.  You are better off getting the correct transmission for your van.


As always the discussion with a bad transmission, your options really are to install a used transmission, have your transmission rebuilt, or install a remanufactured transmission.  


The good news is that you have a vehicle which is equipped with a transmission used in several different cars, has been in service for quite some time, and that there are parts, kits, and even a Ford remanufactured transmission.  Technicians should be familiar with the transmission.  You may even find a dealership with a transmission tech who has a lot of training and experience with this model.


The best option, for reliability, is to install a remanufactured transmission.  


If you have a transmission shop who is offering to rebuild the transmission for you; question just how much training & experience that shop tech has in rebuilding your particular transmission.  Do you trust him to do a better job of rebuilding, than a factory which remanufactures?  In some cases, if you find a shop which specializes in your transmission, then the best option is to let that shop rebuild.  But considering that Transit Connect isn't a Mustang or F-150, you already know the answer.  Your local shop does not specialize in Transit Connect, and probably does not know enough about your car, to rebuild your transmission to your satisfaction.  


A used transmission may be the least expensive option for purchase of parts.  Same labor.  And if you save a little money upfront, with a used transmission......ask yourself how long that transmission will last.  That used transmission already has XXXXX miles of wear & tear.  You don't want to buy a 50,000 mile used transmission, only to have it fail at 60,000, once it's installed into your van.  Used transmissions may be good for someone competent enough to tear it down, buy a rebuild kit, then install yourself.  In which case, you could probably just buy a rebuild kit, and rebuild what you already have.  







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Expert Tips to Extend the Life of the 4F27E Transmission

Posted by Regis on Thursday, February 21st, 2013


The 4F27E is an automatic trans-axle used by both Ford and Mazda. This transmission replaced the Ford CD4E. Mazda actually refers to the transmission as the FN4A-EL. The transmission has four forward gears, one of which is an overdrive gear. The 4F27E transmission was first put into production in 2000 and is still made today. Although a decent transmission, it still has its fair share of problems.

The 4F27E has a number of electrical solenoids. The solenoids are subject to failure which can result in a host of transmission problems. To access the solenoids, all one needs to do is drop the transmission pan. All solenoids are mounted to the bottom of the valve body. They can be checked quickly using an ohm meter to determine the resistance in the wire coils housed inside the solenoids. Please refer to the owner’s manual for the correct readings. If the reading is too low, then you likely have a short in the coil pack. If you get no reading, then you most likely have a broken wire in the coil.

Another common area of failure involves the accumulator. Often the accumulator bore will get damaged and the piston will stick. The accumulator is designed to take some of the fluid while a component is being applied, prevent that band or clutch from applying too quickly.  If the accumulator sticks in the wrong position you could end up with some very harsh shifts.

4F27E transmission cut-away

Source: Atsg.com

Here are a few things you can do to help extend the life of your 4F27E:

1)  Install an aftermarket transmission cooler.  Excessive heat is the number one killer of automatic transmissions. Be sure to mount it somewhere where it will get good air flow.  If finding a place to mount it with good airflow becomes a problem, consider buying a cooler with a built in fan. This will allow you to mount the cooler almost anywhere, including to the body. While you’re at it, you might as well install a transmission temperature gauge so you can keep an eye on the temperature.

2)  Use a synthetic fluid. Just be sure to use one that has the same properties as the recommended organic fluid. Synthetic fluids tend to be much more resilient to breaking down from excessive heat. In theory, you can also go longer  between oil changes. Don’t forget to change the filter with a high quality unit at the same time you replace the fluid.

3)  Get yourself a shift kit. By modifying the timing of the shifts and the way the clutches and bands apply, you can prevent excessive wear and heat buildup.

If you get to the point where it makes more sense to replace the transmission than fix it, consider going with a re-manufactured transmission instead of one that was simply rebuilt. There are a lot of older compact Fords and Mazdas out there being driven by families struggling to get by, or college students paying off loans.

Transmission maintenance can prevent problems, but if one of these transmissions fails, you can help out your customers by cutting costs. While just as good as a new transmission, a re-manufactured transmission costs a whole lot less. They also usually include upgrades that will make the transmission more durable. A re-manufactured transmission also comes with a much better warranty: three years compared to 90 days for a rebuilt transmission.















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