Need some help with transmission code...p0773

[Vansnxtweek]

Hey guys. Been working on the 4runner for about a month and finally got it back going. Did the whole front suspension and took care of some other CELs I had but unrelated to what I did, I still have a CEL coming up, p0773. I also have a p0710 but I'm more concerned with the p0773. This code is for the E shift solenoid. My question is related to the torque converter lock up. When you guys with the 3.4 and an auto transmission are cruising about 60 and you EASE onto the gas, do the RPMS roll right up to 2500 or more or do the RPMs creep up as the speed increases? I'm trying to figure out if the torque converter is locking up so I can know for sure if the E solenoid is in need of replacement or if I should dig deeper into an electrical issue. When I take the o/d switch off I feel 3 distinct shifts and then after hitting the button I feel it shift one time and after that the RPMs drop no more. Shouldn't the RPMs drop one last time as the TC locks up?

Sorry for the wordy post.

Thanks

 

[jgue467]

At 60 rpms on a locked trans s/b less than 2000. Thiese trans unlock really easily when depressing the accelerator, especially if the ECT is set to 'power' but will do it on 'economy' pretty easily. So yes, at 60 if you press hard enough (not much) it will unlock and shoot rpms to about 2500.

If you were to then hit the OD off button now you'll get 3100-3200 rpms because it has dropped to 3rd unlocked. Hitting the button again would move to forth gear locked, so at 60 you should feel the rpms drop quickly to about 2500 and then again quickly to 2000 or so. I get 2150 rpms at 70 for reference.

Mine gave me a 773 a couple years ago, cleared it and it never came up again, yet. I think your trans is good, unless you feel slipping. Luck. :cowboy:

 

[Vansnxtweek]

At 60 rpms on a locked trans s/b less than 2000. Thiese trans unlock really easily when depressing the accelerator, especially if the ECT is set to 'power' but will do it on 'economy' pretty easily. So yes, at 60 if you press hard enough (not much) it will unlock and shoot rpms to about 2500.

If you were to then hit the OD off button now you'll get 3100-3200 rpms because it has dropped to 3rd unlocked. Hitting the button again would move to forth gear locked, so at 60 you should feel the rpms drop quickly to about 2500 and then again quickly to 2000 or so. I get 2150 rpms at 70 for reference.

Mine gave me a 773 a couple years ago, cleared it and it never came up again, yet. I think your trans is good, unless you feel slipping. Luck. :cowboy:

Thanks so much for the info man. I've been doing a lot of searching and I've seen your posts of your experience. Wish mine would stay away like your's' I've cleared it a couple times and it comes back very quickly. According to your data it seems like mine is doing the same things, but G's at about 2100 when at 60. It shifts very smooth..I don't get it. Tired of this CEL being on! I'm gonna try to clean the connections on the outside of the transmission and see if that helps. I'd hate to pull the trans pan for no reason as the fluid is good and clear deep red.

 

[jgue467]

If it keeps coming back perhaps it does need one or all solenoids replaced. I have not done this but have read several how to posts on here, it doesn't appear too difficult. Search some more, there are step by step how to's with pics on this site.

Here is one article on it, look at post #32 for some specs to check and a how to video. http://www.toyota-4runner.org/3rd-gen-t4rs/217174-shift-solenoid-code-3.html

Here's a youtube video, probably more than you need but you'll get the idea. https://youtu.be/vZFwSP2TbTY

 

[Vansnxtweek]

If it keeps coming back perhaps it does need one or all solenoids replaced. I have not done this but have read several how to posts on here, it doesn't appear too difficult. Search some more, there are step by step how to's with pics on this site.

Here is one article on it, look at post #32 for some specs to check and a how to video. http://www.toyota-4runner.org/3rd-gen-t4rs/217174-shift-solenoid-code-3.html

Here's a youtube video, probably more than you need but you'll get the idea. https://youtu.be/vZFwSP2TbTY

Thanks man that's kind of what I'm thinking too. So many small issues with this thing trying to knock them out one at a time. Having a rough start issue when warm too. After some reading it looks like the IACV is in need of attention as well! And the rear shocks That should be fun.