*****PLEASE HELP******CODE P0780****** - Honda-Tech


*****PLEASE HELP******CODE P0780******

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Old 11-30-2006, 03:50 PM   #1
honda genome
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Default *****PLEASE HELP******CODE P0780******

Ok, so I have an 02 accoupe coupe V6 automatic and I got the check engine like on with code P0780 which turns out to be shift malfunction. Not sure exactly what that points to, but did a little bit of research since there isn't that much info on this subject here, but people have been getting similar problems but with different error codes, but same kind of symptoms. Hard shifting sometimes where gear would not shift normally, and some say its related to the shift solenoid on the tranny.

anyone know where this is located for an 02 accord coupe V6? I searched on the top housing of the tranny but couldnt really find anything. Is this even the problem?

any help would be appreciated, the car runs fine and normal, I reset the ecu (backup fuse) periodically since the CEL annoys me, really havent had time to fix the problems yet, but the CEL doesnt come on untill about 5-800 miles later.

SOMEONE PLEASE HELP!!!
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Old 11-30-2006, 07:11 PM   #2
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Default Re: *****PLEASE HELP******CODE P0780****** (Honda Genome)

the problem is because your Diff bearings look like this



All the little metal parts form the bearings are scattered thru out the trans.
Check for extended warranty at the local dealer
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Old 11-30-2006, 07:43 PM   #3
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are you sure, Ive searched and people have said its a shift solenoid on the tranny....how positive are you?
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Old 11-30-2006, 08:42 PM   #4
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and what likely is the cause of that?
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Old 11-30-2006, 09:27 PM   #5
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We're so sure that it's our job.. But that's only coming from guys who work on Honda's for a living.. Like he said...Take it to the dealer and check for a extended transmission warranty. It usually covers the 98-02 Accords.. Good luck..
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Old 11-30-2006, 09:41 PM   #6
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no extended warranty.....Pmed you PnxR
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Old 12-01-2006, 09:13 AM   #7
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will tranny flush or perhaps changing tranny fliud multiple times be of any good? Also, how serious is it, when people with this code come in to the dealership? BC my car drives perfect, only rarely does it thud when im decelerating at low speeds.
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Old 12-01-2006, 04:31 PM   #8
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Default Re: (Honda Genome)

at this point it would be better just adding fluid when needed. you drain the fluid and all that loose metals and sluge is gone. then it shifts worse than now. buck up and do reman. or used trans. or keep adding fluid in hopes it doesn't crap the bed. which eventually it will. honda trained.
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Old 12-01-2006, 10:57 PM   #9
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actually i just changed the tranny fluid today again, making it the second time, which made a huge difference. It didn't shift worse, so i dont know what you are talking about or where you are getting your references from. hopefully this fluid change or maybe the next will aleviate the sludge/crap in the tranny and fix the problem


Modified by Honda Genome at 9:23 AM 12/2/2006
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Old 12-02-2006, 01:11 PM   #10
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anyone else come across "shift malfunction"?
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Old 12-09-2006, 12:22 PM   #11
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please reply when it fails. 10 years in honda dealer if you must know. mom has worked at Honda plant for 20 years. dad at Honda plant 16 years.
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2002, accord, acura, car, code, drives, engine, fine, fix, honda, malfunction, p0780, shift, transdmission

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