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BMXA Shifting Issue

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Old Apr 12, 2024
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Elly's Avatar
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BMXA Shifting Issue

I've a 2003 1.7L with BMXA auto trans. Shifts up and down OK except for going up from 2nd to 3rd when there is a flare in the rpm. Goes into gear eventually (slow to change) or if I back off the gas a little. Replaced correct amount and type of fluid (Honda ATF). Replaced the double solenoid block on the front of the trans. Also has a slight whine when cold and in neutral but lessens when put into drive. Any suggestions before I take to pulling the unit and doing an internal inspection or rebuild?
Thanks.
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Old Apr 12, 2024
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Re: BMXA Shifting Issue

Sounds like a typical 7th gen AT failure issue to me.
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Old Apr 12, 2024
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Re: BMXA Shifting Issue

Check out this post, where someone went into a root cause analysis on the 7th gen AT. 7th Generation Transmission - failure cause investigation - Honda Civic Forum (civicforums.com)
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Old Apr 20, 2024
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Re: BMXA Shifting Issue

Thanks everyone, I'll rip into it and report what I find.
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Old Dec 2, 2024
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Re: BMXA Shifting Issue

Are there any DTC codes?
Try changing the solenoids in the passenger side, they are AB shift solenoids.
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