I have a honda odyssey 2002, 138k miles, a few months ago the trans started slipping (going into neutral) between 2/3 and 3/4. I had the tran flushed. No problems for two weeks, then slip started again. Ceck engine light came on this time as well as TSR light. I took it to the dealer and they read error cods P0700, P0730, P1740. They said they are not authorized to repair/rebuild a transmission, only replace for $4500. My question is can a transmission be rebuilt to get another 70k miles or do I need to spend the extra money to get a new transmission? I have read many blog entries and there does not seem to be a clear decision point/criteria as to when to rebuild versus get a new transmission. Thanks, Dave

SOURCE: p0740 code on 2000 Honda Odyssey

Code p0740 is a problem in lock up control solenoid assembly, Check whether scan tool indicates another code. Does the scan tool indicate another code? YES - Perform the Troubleshooting Flowchart for the indicated Code(s). Do not continue with this troubleshooting until the causes of any other DTCs have been corrected. Measure the line pressure. Is the line pressure within the service limit? Repair the hydraulic system as necessary. Replace the Lock-up Control Solenoid Assembly set lock-up control solenoid valve/shift control solenoid valve A assembly and the A/T clutch pressure control solenoid valve A/B assembly. Turn the ignition switch OFF, and reset the PCM memory by removing the BACK UP fuse in the passenger's under-dash fuse/relay box for more than 10 seconds . Using the scan tool, check to be sure that the engine coolant temperature is 176°F (80°C) or above . Drive the vehicle at 55 mph (88 km/h) for more than one minute . Recheck for code P0740. Does the OBD II scan tool indicate code P0740? YES - Remove the torque converter and inspect for a missing torque converter O-ring. If the O-ring is damaged or missing, replace the transmission and torque converter. NO - The system is OK at this time.

SOURCE: Same problem experienced... check engine & TCS lights ON!

your pump inside the transmission might be bad or governor isnt wronging right..but its all about the tranny here...

SOURCE: 2001 Volvo S80 T6. Transmission slipping in 3rd

valve body or the 3rd gear clutch is bad

Mike Butler

• 6674 Answers
• Posted on Oct 16, 2009

SOURCE: 1998 dodge grand caravan transmission slipping

A good place to start would be a fluid and filter change, and be sure you use proper (recommended) fluid. Then I would remove connectors to solenoids, modules etc, on transmission and clean them well with contact/electrical cleaner. Disconnect battery prior just for sake of safety & to make sure no circuits get shorted while doing it.Then give it a try, and see if any improvement. If still acting up, I'd spend a few bucks on at least having diagnosed by a knowledgeable technician at a dealership, or a transmission repair chain. Sometimes it can be a solenoid or speed sensor, or something not too expensive. Once you have proper diagnosis, then make your decision.

SOURCE: 2003 Buick Rendezvous Transmission Problem.

I would try changing the filter, I've seen some that should be changed every 20,000 miles. You might want to check for any DTC codes stored for the transmission. Auto Zone will do it for free. If there is a code that might point you in the right direction.