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Old 08-22-2019, 04:34 PM   #1
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Auto trans issues, flare on 1st and 2nd, hard downshifts

I have a newly purchased, 2008 Focus SE with 120k miles. No known history other than I know it was a fleet vehicle sometime in it's life. Picked it up for my twin daughter's first car.
I've had several Foci in the past and am pretty well versed with the common repairs.

I have already replaced solenoids A and B, along with a filter and 3 quarts of fresh Mercon LV.

I am ready to bite the bullet and replace the remaining solenoids, if that will help, but now I have my doubts.
Maybe throw in a used trans.

Symtoms: Once car is up to operating temp, shifts from 1-2 and 2-3 flare out about 1000 rpms before upshifting. There does not seem to be any slippage when accelerating, only at the shift points.
I also experience harsh downshifts from 4-2 during passing. If OD Off, 3-2 downshift is much smoother without the harshness.

Hoping someone can point me in the right direction. I am kind of regretting this car right now.

Thanks,
Alan


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Old 08-22-2019, 06:38 PM   #2
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Cracked band or broken servo piston, both of which affect 2 and 4 and then the others when they shift to 2 or 4.
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Old 08-22-2019, 07:03 PM   #3
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Is that something that could be verified with the trans still in the car? Iím assuming the servo piston could be replaced in car but not the band. Iíll have to do a little more research.
At this point, if I have to pull the trans, is one from a salvage yard a good bet? Or repair what I have?

Thanks for your input.


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Old 08-23-2019, 01:15 AM   #4
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Both can be verified in car but band requires trans to be dropped way down while still attached to motor. The driver end cover comes off.

I see one from scrapyard as a 50/50 bet. The cars also wear the end covers to make specialty issues and all will have some version of that going on too.
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Old 08-23-2019, 08:11 AM   #5
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After some research this looks doable. Does the end cover use a gasket/seal that needs replace? RTV?
Should I get the parts from the dealer or a trans shop online?


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Old 08-23-2019, 01:07 PM   #6
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Your call on parts, Ford may well say NLA, they only want to sell complete transmissions.

RTV on the seal but of course the issue will be getting the flat bone dry with trans fluid dripping out of it forever.
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Last edited by amc49; 08-24-2019 at 07:18 PM.
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Old 08-23-2019, 05:46 PM   #7
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Parts ordered.
Dealer had to order them.
I got the intermediate band, the servo/piston, and seal.

Do I need to worry about adjusting the anchor bolt?
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Last edited by alz focus again; 08-23-2019 at 05:57 PM.
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Old 08-24-2019, 07:18 PM   #8
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Ir does need to be checked, may be fine but to burn up a new band would be a bummer.
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Old 08-27-2019, 07:25 PM   #9
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Parts came in today and I finished installing the Intermediate band and new actuator.
Unfortunately, I find no difference.
The band and servo were still intact. Some scoring on the direct clutch drum That I was able to clean up.

I can get some firm upshifts if I am harder on the throttle.
I may look into replacing the remaining solenoids.
It's ok to drive if you are light on the throttle, but it's still not right.
Not how I want to leave it for my new, 16 yr old drivers.
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Old 08-28-2019, 02:24 PM   #10
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Well, you just fixed the most common fails. The end cover you removed can wear to lose reverse or direct clutch (3rd and 4th) so if those act up can be that common wear issue. Solenoids C and E can each affect shifting on 4 and 2 but odd to lose them. The cover wear issue can lower line pressure overall to make everything act up due to not enough pressure, maybe why you get slip at lower loads until you buzz trans harder to increase line pressure, of course, the EPC solenoid controls line pressure, maybe it has gone weak. The valve bodies can wear to make particular peculiar hydraulic issues.

Rebuild manual.............

http://shop.ukrtrans.biz/wp-content/...logs/4F27E.pdf

Last edited by amc49; 08-28-2019 at 02:27 PM.
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