I have a 1997 honda accord 4cy lx auto. Going down the interstate in overdrive-d4- It fells as if im driving over rough road under light accel around 60 mph. Add more throttle and it goes away, let off and if fells rough again. I can fell it in the pedal, its pretty hard. It will not do it in d3 or 1st or 2nd. Axels? I checked em and they look good. Even jacked car up and felt for play or busted boot. What do you guys think?

 

Could it be this lock-up cylinoid?

 

I agree w/ 97hunda.

Has D4 light or Check Engine Light been flashing at any time?

Symptoms suggest the lockup solenoids are "hunting" in/out. I would check for any TCU codes by shorting service check connector, turn keyswitch to ON, and the D4 light flashes deliver the code; long flashes for 10's digit and short flashes for units digit (F-ffff = 14). W/ a 97 you can also access the Pcodes w/ a OBD2 scanner. Autozone will usually do this no charge.

If no codes, the problem may be hydraulic. New Honda ATF and a new trans inlet screen may help in this case.

good luck

 

You are right. When i turn the key on the d4 light will come on for a sec and then go off. So what do you sug? Replace the selinoid? And which set is it the top or bottom ones?

 

Get the codes first. It may be something else. Solenoids are ganged together and are replaced as a unit.

good luck

 

Well no codes. The only time the d4 light comes on is when I first turn the key. I took it to autozone and it dindt show any codes. I guess it could be an axel.

 

To see if the poor drivability problem is related to solenoids, disconnect the solenoids by disconnecting the connector to the solenoids. They are located near the trans dipstick, a pair of cylinders ~ 1" diameter by 2" height on a triangular base w/ 3 bolts holding them down. Disconnecting will cause the Check Engine Light to come on, but should cure the rough shifting,...if it's the solenoids going on/off causing the problem.

You can reset the CEL by removing the BackUp fuse in the underhood fuse box for 15 secs. You may lose any presets on your radio.

I would also suggest manually checking for TCU codes. The 97 Hondas had dual modes, both OBD1 and OBD2. Short the blue 2-wire, service check connector under the glove box w/ a jumper wire, turn keyswitch to On, and watch the D4 light for flashes, 10's digit is long flash and units digit is short flash (F-ffff=14). It may be possible for an OBD1 code to be presented w/o an OBD2 code.

Good Luck