I have a 93 Accord that has no flashing D4 or other codes. The car will travel just fine for about 5 to 10 minutes then it's like the transmission has gone into neutral. The motor is still running fine. I can pull over, turn the car off. Start it , shift into D4 and drive for a while before it does it again. I have changed the transmission fluid with Honda fluid, changed both solenoids and changed the TCM. With no success. Please somebody help me I'm at my wits end!

 

Check the connectors to the solenoids to be sure they are clean, you replaced them so of course I'm talking about the other end.

Was the tcu re-built or used? If used I'd open it up and inspect it.

 

I'll check the connectors. I opened the computer and it looks good. I checked my old one and there doesn't seem to be anything wrong with it.

 

Suggest checking for codes. Some codes don't set D3 light flashing.

good luck

 

I checked for codes. There were none.

 

Symptom chart for "slips in all gears" suggests; oil pump worn/binding, pressure regulator stuck, or defective torque converter.

Since yours is intermittently OK, defective torque converter can probably be ruled out.

I believe remaining faults require trans removal to repair.

good luck

 

Even tho you changed the trans fluid,it sounds like the filter is getting clogged.Once you shut it off the trash in the trans falls to the bottom of the unit again. you start it up your able to drive again until the filter gets clogged again and stopping it from moving. Its ALWAYS best to replace the torque converter in a Honda rebuild