Transmission troubles

Hay guys,
2007 with 220,000 miles.
Fluid changed once at 140,000.
Truck is having trouble shifting from 4th to 5th.
Any thoughts would be appreciated.
Thanks

 

Ya its time...with my luck it can't be that simple.
Thanks for the reply

 

The first thing I would do is the following:
HOW TO CLEAN OR REPLACE TRANSMISSION SHIFT SOLENOID TUTORIAL
https://www.youtube.com/watch?v=Z7boZD_ciqw
This video does not reflect the process for a Tundra. I believe you will need to drop the transmission oil pan to access the shift solenoid.

 

Here's a video on how to remove the valve body from the AB60 transmission.

I'm not sure which transmission you have or where you live. I've had my oil pan off on my transmission so I do have some experience. If you live up north some of the bolts holding the oil pan on may snap. They screw into the aluminum housing and stick out the other side. The exposed threads of the bolt are most likely rusted. They are the standard M6 x 25mm bolts Toyota uses and I replaced mine with stainless steel bolts. I would get some penetrating oil and soak the tops of the screws (I think it's the ones on the sides of the pan) a day or two before trying to remove them.

While it's not the hardest job in the world you will want to get some heavy duty jack stands (I have a car lift). You will want an oil change catch pan that can hold several gallons. A cat litter box would also work. The drain on the oil pan will not remove all of the oil in the pan so when you remove it you will want to be careful. A little more oil will some out when you remove the filter. They are cheap so I would replace it with new since you are there. The oil pan gasket is a heavy duty rubber one that most likely will not need to be replaced but your local Toyota dealership may not have one in stock so if you do need to replace it you could be without a vehicle.

I haven't tried to replace a solenoid so can't help there. It looks like several companies will rebuild your valve body after you remove it but you will have to send it to them. You may find a company that has rebuilt ones in stock (I didn't look).

 

Thanks for the reply's.
This is actually my old truck i gave to my son. he's got somewhere to start now.
anybody's got anything to add , please do.
Thanks again. ..will keep you updated.

 

The video below is a professional level "webinar" explaining how Toyota AB60 transmissions work, with solenoid identification and function explanation beginning about 5:50 that should help diagnose the problem (If you/son can stay awake long enough to understand it. )

It's a very complex feat you and your son are undertaking, but if he succeeds he will have a life-long confidence that he can maintain his vehicles himself if needed. Good luck.

https://www.youtube.com/watch?v=p6u6YlMigF4&t=783s

 

Thanks again,
This is definitely above our pay grade,
But everyone knows someone , our guy is a race engine builder. ..i stopped and talked to him this morning. .he already went through YouTube and had exploded views on his computer. . jr. text me, he has a appointment after work for a fluid change and diagnose at Toyota. ...stay tuned for what happens next.
Again thanks for your time.

 

Just a update,
My son had the trans fluid changed yesterday. ..the service writer was no help for a diagnosis. ..i got my 1st ride when he got back...
Truck kinda slipped on a few takeoff's from a stop, and definitely slipped going into high.
Our engine builder friend is not a tranny guy and was hoping for a direction from a Toyota diagnose's. he's not to excited about going into this.
We are now thinking of calling around transmission shops for their opinion? ?
Again stay tuned and thanks
Rudy

 

Thanks
kid is praying to the tranny gods.

 

If it's slipping as you say chances are you'll need to replace it. Hopefully a transmission specialist will give you a better answer but slipping seams more like worn disks than a bad valve. If your friend is a real nice guy and doesn't mind getting into something he's never tackled before then you might want to try to rebuild it. But you will need a good place to do the work. Removing the transmission isn't super complicated but it's going to take plenty of time. If the truck is 4wd that will add even more time. I've seen rebuild kits listed on sites like RockAuto for around $500. I've only done two (both older GM turbo 350s) and over all it wasn't too complicated. But it would have to be a really good friend for me to ask them for anything more than an afternoon of help. I don't think it'll be an afternoon job.

When I was 16 my father gave me an old Toyota (175k miles). The clutch started slipping. While my father had the tools needed to do the job he really didn't have the experience. Of course the internet wasn't around back then. So one evening I pulled the motor (thinking it was the best way to access the clutch) and taught myself a lot about being a mechanic. If you do decide to do the work yourself (you seam like you aren't up to the challenge) you will come out of it with lots of confidence on tackling other major projects on a vehicle. A rough guess is if you do it yourself I think you could do it for less than $1000. If you have someone else do it I would expect $2500 for a rebuilt tranny, another $300 or so for a rebuilt torque converter, and maybe $1000 in labor. I'm sorry if I'm giving you bad news.

 

Just a update guys,
Jr. had no luck getting Toyota to do a diagnose.
Truck ended up at a tranny shop, waiting on parts from Toyota for a week now. .they told him $1800.
Once he gets it back I'll read the paperwork and fill you in.

 

Have you priced a salvage yard transmission?

 

We talked about a salvage, kid got the truck back today. Said the shop sent it ( i don't know what "it" is ) to toyota for new solenoid's. just under $1800.00.
He's happy, no lights on and running perfect.

 

So Toyota could not figure it out but an independent shop did and then ordered parts from toyota?

 

This^^^^^^^, How is it that Toyota can't diagnose their transmission. That's ludicrous . Correct me if I'm wrong, but I'm scratching my head on this one. 2nd opinion is in order before you go chunking 2k down. Just my .02

 

Hay guys,
Nobody ever said toyota couldn't figure out there own transmission. kid was having a hard time getting the service writer to just do a diagnosis and tell him the problem.
I read the invoice.
OEM valve body...(354108C070) $1100.00
Synthetic transmission fluid.... $50.00
Filter kit ( 58122 ) $68.00
Pan bolts (43331-E) $20.00.
$404 labor.
$1762.00 total
Trucks fixed, kids happy.
Thanks again

 

Toyota diagnosis’s transmission like this
-u pull in and explain the issue and code
-they charge u $100 to tell u have a code that u already knew about for the transmission
-without even checking the fluid or anything they tell you that u need a $7k transmission.

 

Only thing I wish we did different would be to skip the Toyota trans fluid change at the start of the problem.

 

Wanted to thank you guys....you had it right from the start.