maybe drain the pan, just to see how fluid looks?? cant hurt? 2-3 quarts

 

You don't need to drop the VB, just the ATF filter. It would be a good idea to check the filter anyway.

 

Originally Posted by www.Off-Road.com
The A340E/A340F/A340H 4-Speed Automatic Overdrive Transmission
This is Toyotas ECT (Electronically Controlled Transmission) automatic. It is used in both 22RE (4wd) models and in the 3VZ-E and 22R-TE (both 2wd and 4wd)

1st 2.804, 2nd 1.531, 3rd 1.000, 4th 0.705 Reverse: 2.393.



The 4WD version (A340H) has a transfer case with low-range gearing of 2.659:1

Models designated A340F have (I think) the VF2A transfer case with a 2.566:1 low range

Someone who asked to be anonymous sent the following info:

The codes breakdown is as follows

A 340 H

A = automatic transmission
3 = 3 series
4 = 4 speed
0 = gear ratio / minor change
H = hydraulic transfer case (includes ECT)
F = mechanical transfer case (includes ECT)
E = Electronic Controlled Transmission (used on 2WD 4Runners, other 2WD Toyota vehicles)

This transmission uses 2 solenoids to control the shifting.

solenoid 1 solenoid 2
1 th = ON OFF
2 nd = ON ON
3 rd = OFF ON
4 th = OFF OFF

The throttle cable is used for line pressure, it can be disconnected and
the transmission will still shift normally.

But if you loose power to your 2 shift solenoid, you will be taking off in
OverDrive.

 

Great info Goat, thanks!

Erich

 

Yes thanks--the toyota guy also stated that maybe a Cable could be out of adjustment and may be causing it?? Is that a possibility?

Hmm so a 50/50 shot of what solenoid is bad.

 

hey guys i have the same problem with my 99 limited runner... except i get a check engine light when it gets real bad... my fluid and filter have maybe 2k miles to work and back since the last change so i know its still good. mines to the point now to where i have to put it in LOW everytime i come to a stop. had the cell pulled and it was "shift solenoid A electrical"... the guy who i talked to said that one or both of my solenoids are about to take a crap... so i went today and picked up a set of both solenoids today for $130... cheaper to buy 2 in a package than a single one for $109... im just going to replace them both...

 

What is the part number for the pack of 2?

Erich

 

i'll run out to the shop and see if the box is still laying around after i get off work today. i replaced them yesterday and it shifts great now, it actually upshifts normal now too... i didnt notice how it wasnt shifting right until i replaced them.

 

its a PTW part the store said so i dont know what that means or where they ordered it from, but the part number is PTW52-0230. it comes with a few different mounting brackets for a few different trannies. if i remember right i believe it shows for 3 different toyota transmissions. but the runner is back to shifting normal! dont have to look like an idiot anymore shifting the automatic. i hope this helps you guys

 

That's great to hear! I'll have to add this to my list of things to do.

Erich