We bought this van new we have done some trailering with it, but not for several years, and have babied it trying to avoid any transmission problems. I have done the prescribed flush every year.
About a month ago while driving on slick roads the D4 light, TCS and Check engine lights all came on. After I shut the van off and restarted it all the lights went off except the check engine light. I took it to O'rielly's and scanned it and it showed a P0780 shift malfunction I cleared the code hoping it was because of the slick roads. Well it did it again this time on dry roads. I took it to the dealer they said it was a solenoid, but because it had over 60,000 miles on it Honda recommended a rebuilt transmission and the total bill would be a little over $3000.
The transmission shifts and functions normally. The fluid is clear and doesn't smell I just flushed it in December.
From this code does anybody know which solenoid is the culprit?
What are my chances if I services the solenoids and clean the screens and flush it again, and maybe switch to Mobile one?
Does anybody have a link to the procedure for servicing and checking the solenoids.
Any and all suggestions would be greatly appreciated.