2002 Accord EX 114,000 automatic, the transmission shifts perfect while accelerating, and even when coming to a stop, however it will not shift into first gear until you come to a complete stop. I checked the fluid, checked for any codes via OBD II. I have done some research, and did not get any hits for this problem (many many hits for bad transmissions....) I hope it's one of the solenoids, however I thought that someone may have run into this problem with information that could save me some time and money.

I can manually shift the transmission into first before coming to a stop, full throttle for a dead stop, and no slipping of transmission, no burned fluid smell, however I plan to change out the fluid, may do a 2-3 drain/fill (when I can make it to the Honda dealership for the fluid).

Any help will be appreciated.

Clint

 

it could be one of your pressure sensors. After i had mine tranny rebuilt by AAMCO Wilmington (Did a great job!) The tranny had issue shifting from first to second. They said it is a pressure sensor. They replace it in 10 minutes and the tranny is great ever since.

Also, you have to have an OBDII reader that is able to read transmission codes. The cheap ones don't.

 

You are correct, I have one of the cheaper OBD II readers, actron OBD II PocketScan.

I removed the Lock-up control/shift control solenoid today, cleaned the screens which did have a lot of gunk on them in my opinion, maybe a little better, however problem still persists. I'm a machine technician by trade, and I plan to do a fluid change soon, however from my experience it never works. I don't have a lot of experience on this type of problem, however it seems more like an electrical problem than a mechanical, but when you combine fluid hydraulics with electronic controls it gets complicated for me!!

If anyone has any advise, pointers, information I would really appreciate it. I checked the coolant, and someone has changed it to green, no idea what, so I purchased some Honda coolant as well for a change, at $20 per gallon on a 50/50 mix that's a rip off for sure. I have a 97 accord EX auto, 4 cylinder V-tech with 246,000 on the clock, never had a transmission fluid change, as I was scared to after it not being changed so long. Zero problem with that car, still going strong, I have maintained the car well other than the transmission fluid.

 

no codes, then your trans is worn out/tired time for retirement.

 

You need to check your pressure sensors. And you say the fluid looks fine and there are no leaks?

If it shifts down to 1st with the handle it means that the "change gear now!" command to the computer to switch the right solenoid works fine.

The fact that it doen't do it automatically might be that the computer doesn't see the correct conditions to switch the gears. So it could be that the correct pressure is not detected and that might be a defective pressure sensor or sensors.

one of mine went at 98K miles.

And you based this on what??

 

The fact that it doen't do it automatically might be that the computer doesn't see the correct conditions to switch the gears. So it could be that the correct pressure is not detected and that might be a defective pressure sensor or sensors.


dont you think your statement above will make the pcm/tranny module to throw in a code? have you ever heard about RATIONALITY.

 

OBD isn't extremely smart. There are plenty of issues where an engine/trans will behave incorrectly and OBD won't throw any codes.

 

its obd not odb.
you could be correct about that, again rationality. certain conditions/voltages need to be met before setting a code.

what do you think is wrong with this transmission smart guy

 

Sorry, I transposed two letters You're the one suggesting he chuck his transmission over a pretty minor issue and you're giving me crap? What's your problem?

 

Automatic transmissions that fail to downshift, might be due for an overhaul or replacement.