Have a 1994 honda accord, vibrations when slowing down just started a week ago. It seems to do this more when you slow down and stop however when u rev it up it seems to go away,went to a restauraunt last night went to turn heard some knocking in the front now the car wont move when put in gear(the engine just roars) but it was rollin while in gear ? Trans? or maybe not even related?

SOURCE: thumping noise when apply brakes 1990 Accord

yes my cv axles had to be replace cause of the same thing but when you replace one side you need to do the other side at the same time cause when 1 goes bad the other is not that far behind . i know from experience

SOURCE: car won't shift gears

It sounds like you have a bad transmission computer. The first thing you should do is have a shop try to scan the TCM for codes.

SOURCE: 94 honda accord ''D4'' gear shift shift selector blinks

Theres a transmission cooling sensor and somtimes the wire comes loose from other repairs being done around it. or its just out. its on the left side sitting on the tranny. THATS WHY your d4 light is blinking

SOURCE: Have a 94 Honda accord Ex manual transmission

i have the same car and problem and yeah its exactly that your low on tranny fluid, of course you can always pull the dipstick in the tranny with the car shut off (what my Manuel says, usually its hot and running mine says engine off) chances are your gonna be a quart low

SOURCE: 91 honda accord automatic only goes to 2nd gear when in D4

It could be the computer, or the speed sensor. The speed sensor will control the speedometer, and tells the transmission at what speed to shift.  

If it is the Transmission computer module (TCM/TCU) it will be located under the passenger side foot rest. Just pull the carpet back, and remove the steel panel cover using a deep 10mm socket. The TCM is usually the one on the left, but sometimes on the right. It will be the smaller of the 2 coputers. The other, is the Engine computer. When you locate the TCM, you only have to sets of wires that just snap in. Unsnap them, and you can take the cover of the TCM off with just a phillips head screw driver, and look to see if anything looks burnt out one the circuit board. If see something that looks burned, that is your problem, and will need a new one. It took me about 30 mins if that, to locate the TCM, remove it, and replace it.  

If it is the Speed Sensor, you can find one online for about $21.00 at eparts.com Best of luck to you, and hope it helps. If you have anymore questions e-mail me at [email protected]