This on Honda Accord 3.0L just over 100k mi. A couple weeks ago wife got flashing D light. When I did several follow up shakedown drives, never returned. No CEL. No code on basic code reader. Might have noticed a more sharp/harsh gear change on deceleration, about it. After some research, figured changing original switches a good idea anyway.
Local stealers wanted full Monte price, ~$80 each plus tax. Ended up with dealer on Amazon, $58.25 each plus tax shipped. Very quick shipping. Majestic Parts price same ballpark shipped, but slower basic shipping estimate. Worst part of installation, removing 3rd gear cover upper electric connector clips. A little tough on the finger tips. Very little ATF drips from 3rd gear, none from 4th. Latter is back and toward vehicle front from third but not hard to get to with small wheel well cover moved to side after clip removed. Seems to shift fine, no flashing D. Will do an ATF d&f soon.
3rd switch cover
3rd switch
Old vs new
4th switch. Cover moved to left over 3rd switch which is lower.
Old vs new switch
Finished. 3rd gear switch cover reinstalled. Small wheel well cover back to left, upper push pin clip reinstalled.
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