Question about Honda Odyssey

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2001 HONDA ACCORD CODE P0740 TRANSMISSION

2001HONDA ACCORD EX V-6 121,000. MILES..22 DAYS BEYOND MY PURCHASED EXTENDED WARRANTY AS WELL AS 18,000 MILES BEYOND HONDAS TRANSMISSION EXTENDED WARRANTY. I FELT A **** LAST WEEK THEN 5 DAYS LATER MY CHECK ENGINE LIGHT AND MY TCS LIGHT IS ON. HONDA DEALER SAYS THROWS PO740 CODE, NEW TRANSMISSION 3K AT DEALER..???

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Horsecrap...go to an independent transmission dealer after you call the extended warranty folks and complain!
I can count the number of Honda transmissions that go bad before 300,000 miles on one hand.
Good Luck

Posted on Jun 22, 2009

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I was driving on the interstate when my check engine light came on. The code was PO741. I was told it was not major. Shortly afterwards, the check engine light went off, and my car drive normal. Now 4 days...


P0741 is internal transmission failure the clutches fail along with the torque converter and the transmission will need to be replaced.

Check and follow this procedure from Honda Service News November 2003 TITLE:
A/T DTC P0740, P0741 Repair Tips: Another Look APPLIES TO: All Models

SERVICE TIP: If you're doing a repair for DTC P0740 or P0741 (lock-up control system) on any Honda models with A/T, except Passport, refer to this table first:

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If there is no S/B posted on ISIS for the vehicle you're working on, go to the DTC P0740 or P0741 troubleshooting procedure in the Automatic Transmission section of the appropriate S/M or under DTC Troubleshooting in ISIS. If the procedure recommends replacing the A/T, make sure you have a reman A/T on hand. Remove the original A/T, and look at the condition of the torque converter O-ring. Then follow these tips to ensure a lasting repair.

Missing or cut O-ring . If the O-ring is missing or cut, the ATF can leak internally, causing DTC P0740 or P0741 to set. Replace the O-ring, and reuse the original A/T. Make sure the problem has been fixed by connecting the HDS and testdriving the vehicle using the previous DTC P0740 or P0741 freeze data parameters (match the TPS and VSS values for at least 25 seconds ). If the DTC comes back, install the reman A/T. If the DTC doesn't come back, return the reman A/T to the reman center.

Flattened or deformed O-ring . If the O-ring is flattened or deformed, replace the A/T. The O-ring can get damaged if the ATF pump seizes up and overheats. Make sure the problem has been fixed by connecting the HDS and testdriving the vehicle using the previous DTC P0740 or P0741 freeze data parameters (match the TPS and VSS values for at least 25 seconds ).

O-ring is OK . If the O-ring is round and in good condition, the most likely cause for DTC P0740 or P0741 to set is the A/T, the torque converter, or both. Install the reman A/T. Make sure the problem has been fixed by connecting the HDS and test-driving the vehicle using the previous DTC P0740 or P0741 freeze data parameters (match the TPS and VSS values for 25 seconds ). Before you install the reman A/T, make sure the O-ring on the torque converter is properly installed.


Hope helps.

Jun 24, 2011 | 2004 Honda Accord

1 Answer

Engine code p0740 ????????


Make sure you report the problem to the National Highway Transportation Safety agency (www.nhtsa.gov). Also-research the web and you will find hundred similar complaints and a successful class action lawsuit in California against Honda for 1999-2001 Accord transmissions that showed the same malfunction code. The California settlement required Honda to repair transmissions and extend warranties up to 109,000 miles and 93 months.

All Hondas operating with that 3.0 and 3.2 litre V6 have tremendous transmission problems.....the fix is usually the lock up solenoid,,,,I have seen problems with this code also it was the VSS vehicle speed sensor.... I have had Accords/Acura 3.0 litre with major transmssion failure as well as paying 2500 for a rebuild and going back to get it done right...the tranny builders have problems getting these right ..if you decide to have your tranny rebuilt they are not ripping you off,,, some of the clearences on the bushings to drums are .002 thousandths close..using scotch tape to measure the fit...you can not go into the valve body if you do not know about trannys..it is critical..the only home remedy is to drain the trans,,,use honda genuine transmission fluid it is 8 bucks a quart...disconnect your battery terminals for more than 30 minutes which will reset the code now you know it...after 50 miles it will come back if the solenoid is bad or is stuck..the code is a malfunction in the circuit not the solenoid soley...sorry I wish I could guide you to a better FiX!!!!

Jun 17, 2010 | 2002 Honda Odyssey

1 Answer

1998 honda accord automatic....when i change from


Make sure you report the problem to the National Highway Transportation Safety agency (www.nhtsa.gov). Also-research the web and you will find hundred similar complaints and a successful class action lawsuit in California against Honda for 1999-2001 Accord transmissions that showed the same malfunction code. The California settlement required Honda to repair transmissions and extend warranties up to 109,000 miles and 93 months.


These Transmissions are hard to FIX...I found very few rebuilders that can pull it off... They were recalled in 2000 ....sorry but it is no easy fix... the ONLY OTHER CLUNKING could be a problem is : your motor mounts are vacuum assisted meaning if you have a vacuum leak they will not stiffen the mounts correctly.... it sound crazy but look underneath you have small 5/16 vacuum lines near the radiator mount and some have it ont he firewall mount... I drive 99 Ex Accord!!!! rebuilt tranny 2 times !!!! make sure you get a warranty if you do...2000-2400 is a good cost....

Jun 15, 2010 | 1998 Honda Accord

1 Answer

I have a 20001 Odyssey with 70,000. The check engine light and TCS light both came on. The TCS light has since gone out but the check engine remains. I went to an auto parts store and their computer came...


unfortunately it is. Contact your local dealership to see if it may still be covered under a warranty or not.

Customer Concern: The check engine light is on with the trouble code P0740 present. Tests/Procedures: 1. Test drive the vehicle and watch the tachometer. See if the automatic transmission locks up. If unable to see the RPM change, and the Engine Control Module (ECM) is turning on the lockup solenoids, then the problem has to be internal to the transmission. The transmission has an extended warranty from Honda for 7 years or 100,000 miles. Potential Causes: Automatic Transmission
Lock-Up Solenoid
Torque Converter
Tech Tips: TSB #02-062 Diagnostic Codes: P0740

Oct 10, 2009 | 2001 Honda Odyssey

2 Answers

Odyssey transmission going out at 111,000 miles


2001 honda oddysey check engine light came on. It said TCS
When code was cleared the transmission won't work now. What is wrong?

Sep 02, 2009 | 2001 Honda Odyssey

3 Answers

2000 Honda Odyssey - TCS Light stays on.


most likely some of your traction sensors are faulty

Jul 16, 2009 | 2001 Honda Odyssey

2 Answers

P0740 code showing in my 2000 Honda Odyssey


P0740 Torque Converter Clutch Circuit Malfunction
The problem could be the torque converter itself or the sensor circuit for the clutch.
Best to have a Transmission Expert look at it to see if any further damage has occurred.

Apr 19, 2009 | 1999 Honda Odyssey

2 Answers

Transmission failure


they are the only ones that could tell you... did you not get any paperwork with the replacement ?

Dec 16, 2008 | 2001 Honda Odyssey

3 Answers

Engine lite on


700= Transmission Control System
740= Torque converter clutch circuit

Oct 23, 2008 | 1999 Honda Accord

2 Answers

2001 Honda Odyssey Transmission Problem


call American Honda, there was a recall on 2001 Odyssey transmission and therefore Honda has an extended warranty for transmission. i just had mine replaced at no cost.

Aug 24, 2008 | 2001 Honda Odyssey

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