GAZZUZZ:


what do you think the culprit is? Me I suspect 13pin winch

GAZZUZZ:


what do you think the culprit is? Me I suspect 13pin winch

Kashif:


Dirt picked by the replacement shaft(s), or dirt around seal finding its way into transmission.

If you are very careful to ensure a clean procedure, there shouldn't be a problem. Whenever I work on these, I always have a pack of disposable napkins around.

ironheart:
Hello kashif, been following your thread for a while and i feel proud to know you have been quite diligent with this.

I took my car to Apo mechanic village Abuja for some job to be done, its a 1999 toyota corona manual gear box. When the job was done, out of curiosity, i ask the mechanic to drain the oil from the gear box and i was surprised about 5 table spoon of oil came out.

Lucky me you can say. The mechanic said i should tke it to some to fill it up for me, when i got there, he was not around and out of curiosity, i asked his boiz what type of oil they use. He said grease mixed with transmission fluid.


My brother i weak. Now my question. Whats the rationale behind that mix? I know grease does not transmit or take away heat very well.

I need the experts to discuss this.

Cc gazzuzz, kingreign, honmusa, cardoctor

GAZZUZZ:


Is your transmission automatic or manual?

ironheart:
manual

GAZZUZZ:


Your problem simple nah, just manual transmission oil 75w90 available in any spate part store.

ironheart:
my point is, why do u think they mix grease with ATF before adding to a manual transmission

because the car owners allow them

GAZZUZZ:


because the car owners allow them

ironheart:
Hello kashif, been following your thread for a while and i feel proud to know you have been quite diligent with this.

I took my car to Apo mechanic village Abuja for some job to be done, its a 1999 toyota corona manual gear box. When the job was done, out of curiosity, i ask the mechanic to drain the oil from the gear box and i was surprised about 5 table spoon of oil came out.

Lucky me you can say. The mechanic said i should tke it to some to fill it up for me, when i got there, he was not around and out of curiosity, i asked his boiz what type of oil they use. He said grease mixed with transmission fluid.


My brother i weak. Now my question. Whats the rationale behind that mix? I know grease does not transmit or take away heat very well.

I need the experts to discuss this.

Cc gazzuzz, kingreign, honmusa, cardoctor

Kashif:


They mix grease and atf to 'achieve' the fluid viscosity recommended.

KoffiDis:
Hello, I have a 2003 Toyota Camry V6. It has a 1MZ-2FE engine and the gear is bad. First it started with giving a loud thumping sound when decelerating. I have taken it around for over 3 years to various mechanics with no solution. Recently the car became very sluggish and does not pick up smartly. In addition it doesn't seem to go past the 2nd or 3rd gear. I went to Ladipo and those guys said I need a new gear box! The 13pin that comes with the car is very expensive and they offered to convert to a 10pin. I'm scared about what the outcome would be. How does the rebuild sound and what are the cost implications. I'd be happy to answer any questions that would help diagnose the issue and provide solution. I don't have money for another car yet. Please help. Thanks

Kashif:
Below is the picture of the upper valves. It is important to lay them out as they are brought out. Mix them up at your peril They all must be out for cleaning, and also allow access to clean and inspect their bores. Mine was dirty! I noticed my transmission 'expert' retentioning two springs he could access - bad practice!

Sorry, no picture of the lower valves. That is where the primary pressure regulator valve resides. I missed to mark the OEM pressure setting has to be figured out. Anyways, the upper valvebody has more than twice the number of valves in the lower valvebody.

ochado:
Hey Kashif, I have issues with my sienna 08 tranny. When acceleration gets to gear 3, it stalls and decelerates. Computer scan indicates that control solenoid B is the issue. After fixing it, it complained of control solenoid A. What is the likely solution?

Would be glad if you can pm me your phone number so that we can discuss.
My contact is 08034137378

Kashif:


I dont understand what you mean by stalling. The engine dies? Auto transmissions do one of the following in a range - engage and stay, irrespective of load; flare (act as if in nuetral); slip (drive but with noticeable mobility loss); bind (act as if the brakes are applied). Which of the following applies?

Toyota's solenoid performance codes are not reliable. Don't change your solenoid when you see these codes, as they are the culprit only 40% of the time, or less. They are just ratio codes. When the TCM commands a shift, it is looking for a change in RPM. If this does not happen (because the shift did not occur), the solenoid performance code for the solenoid involved in the shift is set.

Problem could be stuck valve(s), solenoid, worn holding member or leaking circuit.

What was the fix for the solenoid B?

ochado:


Based on your explanation it flares(or slips) when it's about to enter gear 3 or 4, that is when on express road. After flaring, it picks up again from the first gear repeats the circle. The valve was removed and checked to see if it was stuck, after then it was washed with fuel and replaced back. When replaced, it complained of solenoid A even though it was not tampered with. I think the problem is with the valve body which I believe you can fix.

Kashif:
Before I conclude, let me say that I was forced to undertake this quickly because my transmission was beginning to fail.

The problem degenerated from 2-3 flare to sluggish 1st.

Then there was 3-2 clunk

Then came binding in 2nd, which was very severe when cold. Once 2nd is commanded, it would be as if the brakes were being applied fully and released in quick succession. To reduce that, I would need to let the vehicle get warm, and then perform garage shift. . Nothing wears a friction faster than a bind.

Then finally lost 1st and 2nd gears. The vehicle will start in 3rd, even though the computer always commanded it properly. It would also not respond correctly to scan tool commands. Then I knew I had to do something quickly before I would be forced to drop the transmission, to attend to clutches burnt beyond use.

One more thing - I found my filter seal broken. Replaced with a new one.


In summary, I repaired the valve body; major additional work being on the solenoids. A lot happened in working on the solenoids, but I chose to leave it out so I can close this endeavour with this post. If anybody has a question, ask.

Put the valve body back, cleared adapts, warmed it up, performed garage shift, and took it for a test. It went straight through all the gears with silk shifts, to my pleasant surprise! I had expected it to start relearning. I have driven a bad transmission for so long I am yet to get used to a working one.

So brethren, I have overcome the notorious '13 pin'!



CC: Marpol

Kashif:
Once again, I pulled out my other valve body that failed woefully. By the time I was returning the vehicle to my mechanic to remove the failed valve body that January, the transmission was severely acting up - banging on engagement, flaring, binding etc.

On tearing this guy apart, what I saw in the lower VB was shocking! Most of the valves were sticking. The clutch application control valve was married to the bore. The 4-5 valve was so sticking it took 30 minutes of very meticulous picking to get it out! Only the primary pressure regulator valve was free. It was not that bad when I worked on it earlier.

Surprisingly, all the upper VB valves were free! Well, that points to one thing - the filter failed to do its job somehow! That is where the fluid gets to first, before going 'upstairs'.

This time, I was fully prepared for any dirts hiding anywhere. After pulling out the valves, the cleaning commenced. Valves' cleaning, bore cleaning using power tool, and clearing everything with compressed air.

Milosval:
My 13 pin gear box binds ( do as if brake is applied) and do not downshift. It is stuck in gear 3, 4 and 5. Pls help