After Transmission swap 96 Accord Wagon will not change gears. has reverse and first gear fine but will not shift into second gear was there something i missed when i changed the transmission?
Car Info.....
96 Accord Lx Wagon
165,000 Miles
d4 light is not flashing
Used Transmission

 

The Throttle Valve Control Cable may either be binding, grossly misadjusted or the Throttle Valve itself may be stuck in the applied position.
The Throttle Valve Control Cable runs between the Throttle Body to a lever on the transmission case. Prior to full electronic transmissions, this is the way upshift / downshift points were determined based on throttle position.
The Throttle Valve itself varies oil pressure to one side of spool valves in either the primary or secondary valve bodies, thus affecting downshift/upshift points.
If either the control cable OR the valve itself were to stick in the full applied position; it would be like having your foot planted into the firewall.
The transmission would not upshift.

P

 

I checked the cable and the lever and both are moving freely.. Any other suggestions

 

You will notice #8, that is the throttle valve assembly. #6 is the shaft that your lever is attached to. Notice the cam afixed to the shaft? That interacts against the spool valve retained by #5. That spool valve returns to the relaxed position by the oil pressure that pushes against it ONLY. The is no mechanical link which will pull the spool valve back to relaxed if it binds in the bore (which I suspect yours has).
The exterior lever will spring back from the spring mounted externally, not be any motivation from the Throttle valve.



http://www.hondaautomotiveparts.com/auto/jsp/mws/prddisplay.jsp?inputstate=5&catcgry1=ACCORD&catcgr y2=1996&catcgry3=WGN+LX&catcgry4=KA4AT&catcgry5=AT ++++++REGULATOR

P

 

This is an electronic controlled trans, the cable is for line pressure only, not shiftting. The TCM controls the shifting. It could be anything from shift solenoid B to an output speed sensor. Does the D4 light flash?

 

You absolutely sure about that? The Throttle valve has a direct relationship with shift points. It works in conjunction with the afore mentioned solenoid packs.
Hey, try it. I've had it happen several times.

Oh, and by the way, he mentioned "no D4 flashing"

 

Yes, look at the hydraulic diagram. It is indirect, throttle pressure goes to the modulator valve and the CPC valve, not directly to the 1-2 shift valve.

 

Here lets just do a quick test. Locate the shift solenoids, uplug them. Put the car in drive, if it takes off in first gear, the problem may be internal. If it takes off in 4th gear, then its not in the trans, it's exterior.

 

Ok I did unplug the solenoids and the D4 light was flashing and the car did take of in 4th gear... I plugged solenoid back up and the d4 light quit flashing and it took off in 1st but no gear change....

 

Once again........

P

 

Ok, since you unplugged the solenoids and you had 4th in D, that tells us that the trans is mechanically and hydraulically capable of having other gears. If the throttle valve was stuck, you would have had another gear other than 4th. I'm thinking you are going to have a stuck shift solenoid B or something to that affect. You could try taking your old shift solenoids off of the old trans and put them on this one and see what happens. May take care of the problem.