I just swapped out my tranny yesterday old was a Y7 new was a Y8. Now when I deaccelerate in 5th gear it will randomly pop out of gear. My motor mounts are really ---- so I don't know if the slack in the mounts would cause this. I am using Honda MTF since I though the motor oil was causing it to pop out of gear. Its not low on fluid. Shift linkage is not bent. Clutch engagement is alittle on the soft side need to fiugure out how to adjust hydro clutch, don't know if light clutch would cause 5th gear to pop out also the tab on the old throwout bearing was broken so I don't know if that would have cause a firmer clutch feel.

Possible reasons I have seen are low fluid, bad syncro, bad 5th gear, bent shift fork.

 

replace motor mounts, does it pop out of third also? try hard decel in third

 

Yeah it pops out of third also. I know the motor mounts are ----/shot car has 400k plus on it. Maybe I can put some jimfabs in.

 

mine use to pop out of fifth gear till i put some fluid in.

 

Sounds to me like bad mounts.

 

Check your fluid first. I know on the 3rd gen accords if you ever let the fluid get low at all, 5th gear would go and pop out all the time. It does make sense that it might possibly pop out if the shifter bushings and motor bushings are so bad that you can't keep the shifter engaged under deceleration. I know when I let off the gas and am in gear the shifter moves alot on my car.

 

if fluid and motor mount are fine then kiss ur tranny goodbye.

 

I'm going with the motor mounts

 

Its $200ish for all 5 mounts I am going to replace them all they are completely shot the engine torques back and forth pretty far.

 

what about that shift stabilizer bushing ?