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Old 06-03-2011, 04:06 PM   #1
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Question Replacing Shift Solenoids

I need to replace shift solenoid A because I'm getting delayed engagement when auto trans shifts from 2nd to 3rd gear. I have two solenoids so for good measure I'd also like to swap the solenoid that controls 1st to 2 shift.

My question is are these two solenoids the same, part no. XS4Z-7H148AA? Also, shift solenoid A is the one with the white wire, so I'm told. Is that correct and how do I determine the solenoid for 1st to 2nd gear shift, what color is the wire?


Thanks!


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Old 06-03-2011, 04:51 PM   #2
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http://www.focusfanatics.com/forum/showthread.php?t=167581

Hopefully that helps some. I'm a dunce when it comes to the black magic of an automatic.
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Old 06-04-2011, 02:47 PM   #3
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Thanks for the link! It's exactly what I need
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Old 06-04-2011, 07:52 PM   #4
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Ok so I just replaced the A and (I think E) solenoid (the two small ones that are the same, XS4Z-7H148AA). After changing the soleniod I am still experiencing the same symptom. On a cold start such as the first trip of the day, or after the car sits for awhile, when the auto trans shifts from 2nd to 3rd the engine over revs for a second then the gear engages. This only happens one the first shift, afterwards shift from 2 to 3 is fine until the car sits for several hours again. It only happens on the initila shift from 2 to 3.

It seems as if something is sticking then after first movement it's ok.

Does anyone know what this could be? I thought for sure solenoid :(
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Old 06-04-2011, 08:30 PM   #5
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Go to your 'instrument clusters' 'test mode'.

Scroll through the parameters until you see "DTC none" and verify that there is actually 'none'. If you have a DTC code this could be an indication of your problem.

If your speed sensor or something related is failing it can cause rough shifts too. It will usually be a communications failure code.

no guarantees....
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Old 06-04-2011, 08:37 PM   #6
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My car does the same thing, Ford says nothing is wrong with it.

Like you said it's whenever the car been sitting a few hours, 1-2 is good, but 2-3 revs up about 300-400rpm before it engages.
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Old 06-04-2011, 08:50 PM   #7
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Quote:
Originally Posted by 07FociSES View Post
My car does the same thing, Ford says nothing is wrong with it.

Like you said it's whenever the car been sitting a few hours, 1-2 is good, but 2-3 revs up about 300-400rpm before it engages.
Yep exactly... I wonder if others are experiencing this as well?

Oh well at least I got a fluid and filter change taken care of... wasted $65 on solenoids though :(
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Old 06-04-2011, 09:58 PM   #8
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never had that issue with my auto before i swapped it to a MTX.. had 240k on it too, always was smooth and shifted nice and firm.
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Old 06-04-2011, 10:25 PM   #9
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I'm not worrying about it because it only does it once and then that's it.
I have even let my car warm up ten mins prior to driving and it still slips on the first 2-3 shift. Increasing trans pressure with sct tuner doesn't change it either.
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Old 06-04-2011, 10:37 PM   #10
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Quote:
Originally Posted by Mike_Mac View Post
never had that issue with my auto before i swapped it to a MTX.. had 240k on it too, always was smooth and shifted nice and firm.
Was that 240km ?
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