Question is, has anyone ever fixed a code P0740 without replacing the transmission. The torque converter will not lock up on my 97 Accord SE, and the code sets after a few minutes of highway driving. The first hint of a problem, came a few weeks ago, when it had a delayed engagement on cold start up. Fluid level/quality looked good, so i put a bottle of Lucas trans conditioner in it. Seemed to be better as the delay is only a few seconds when its cold. Now its setting a TCC code. I ohm checked the 2 solenoids and they checked fine. They also "click" loudly when power is applied to them. Dont think its a solenoid problem. This trans has 140K miles on it and shifts fine in all gears except lock-up....I have heard of TSB 98-040 but dont have access to it.....Bad converter ?? Converter "O" ring ??.......3gdude

 

I am a honda tech at a dealer and almost every time that code comes up it requires a new trans,you can follow the tech bulletin and find everything on your trans is good,meaning there is internal pressure problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 3gdude &raquo;</TD></TR><TR><TD CLASS="quote">Question is, has anyone ever fixed a code P0740 without replacing the transmission.

.....Bad converter ?? Converter "O" ring ??.......3gdude </TD></TR></TABLE>
A bad converter o-ring can cause it, but it isn't usually the problem on original trannies. Bad o-rings usually come up just after replacing a tranny, but it doesn't hurt to check. Just time consuming.