Originally Posted by bobinator5000

Bad news is, trans is probably shot. Check the fluid, make sure it isn't low. There's a possibility it's just the torque converter but until the trans has fresh fluid and is pressure tested at a shop, you won't know. There's a lot of things that can cause a trans to not shift right, but if the fluid is burnt, the trans is done. 160k is a pretty go for a trans FYI, especially on a performance vehicle.

Good news is trans on the V6 accords are pretty cheap because of the high failure rate; 5th gen go for around 1300, 6th gen for around 1500-1600 and 7th gen around 2200-2400. You can either take it to a shop and pay them to change it out (reccomend you get new axles, rotors and pads while you're at it, any good shop won't make you pay for putting in new parts when they have to pull the old ones anyway). Had this happen on a beemer you can double that price.

You can also DIY and make an investment in tools and kit if you've an garage and do some basic engine work; timing belt and water pump, accessories, change the head gaskets, etc. Make sure to get an OEM remanned. Changing an engine/trans on an accord isn't as hard as you think. There's a lot to disassemble; the factory service manuals (FSM, v6 suppliment, electrical troubleshooting and body manual), they tell you what to do and how to do it.