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 A340 Transmission issues and FAQs
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nhughes
Still looking for 4 Low


7 Posts
Member #12179

Posted - 07/23/2009 :  7:38:43 PM  Show Profile Send nhughes a Private Message  Reply with Quote
Update!!! I'm An Idiot!!! My vin tag Tells me that it's an A340H. Why I hadn't realized that while adjusting my "kickdown"/"trans. throttle position cable", is beyond me. - Still Shifting Manually...

86 22rtec 4x4 slightly modified, stolen, and recovered.
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bierend
Still looking for 4 Low


3 Posts
Member #12327

Posted - 08/18/2009 :  7:41:41 PM  Show Profile Send bierend a Private Message  Reply with Quote
This thread has been very helpful. I'm trying to help my son with an 89 Extra Cab he inherited from his Grandad. The truck has 88K on it, but grandma put a rebuilt tranny in it for some reason. 1600 miles later the thing is having trouble staying engaged after running on the freeway, and the ATF is torched and smells horrid.

So the tranny company gives a 12 month 12,000 mile warranty, but since it's been 19 months they were in no hurry to do any warranty work. The guy suggested an additive (Lube Gard) and checking the Throttle Cable and the Output Speed Sensor.

Does any of that sound right?
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bierend
Still looking for 4 Low


3 Posts
Member #12327

Posted - 08/18/2009 :  7:42:31 PM  Show Profile Send bierend a Private Message  Reply with Quote
This thread has been very helpful. I'm trying to help my son with an 89 Extra Cab he inherited from his Grandad. The truck has 88K on it, but grandma put a rebuilt tranny in it for some reason. 1600 miles later the thing is having trouble staying engaged after running on the freeway, and the ATF is torched and smells horrid.

So the tranny company gives a 12 month 12,000 mile warranty, but since it's been 19 months they were in no hurry to do any warranty work. The guy suggested an additive (Lube Gard) and checking the Throttle Cable and the Output Speed Sensor.

Does any of that sound right?
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bierend
Still looking for 4 Low


3 Posts
Member #12327

Posted - 08/18/2009 :  7:43:22 PM  Show Profile Send bierend a Private Message  Reply with Quote
This thread has been very helpful. I'm trying to help my son with an 89 Extra Cab he inherited from his Grandad. The truck has 88K on it, but grandma put a rebuilt tranny in it for some reason. 1600 miles later the thing is having trouble staying engaged after running on the freeway, and the ATF is torched and smells horrid.

So the tranny company gives a 12 month 12,000 mile warranty, but since it's been 19 months they were in no hurry to do any warranty work. The guy suggested an additive (Lube Gard) and checking the Throttle Cable and the Output Speed Sensor.

Does any of that sound right?
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Scotty
Admin


ADMINISTRATOR

$ DONATOR

USA
8694 Posts
Member #77

Posted - 08/18/2009 :  7:58:58 PM  Show Profile  Visit Scotty's Homepage Send Scotty a Private Message  Reply with Quote
If you are smelling burnt fluid, then ita an internal issue, not electrical.

Scotty


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duece
Still looking for 4 Low


13 Posts
Member #11082

Posted - 08/25/2009 :  06:02:52 AM  Show Profile Send duece a Private Message  Reply with Quote
I bought the selonoid kit 2 weeks ago and installed it, and everything seems to be normal now. However, I hooked to a trailer on Sat. to haul a mower and I kicked in the ECT button, as well as turning od off (the trailer is quite heavy btw) and it had shifting problems again??? I stopped, turned the truck off, and started it again, and all was peachy?! Got home, unloaded trailer and mower, and went back out with ECT off and OD on, and had no problems. What else do I need to replace?

Duece
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P4AT
Still looking for 4 Low


Canada
3 Posts
Member #12664

Posted - 02/11/2010 :  6:45:50 PM  Show Profile  Visit P4AT's Homepage Send P4AT a Private Message  Reply with Quote
Hi guys,
I saw this website as I was searching for my competition, it brought me to this forum. If you need some help on the Transmission side I might be able to help you out. Here is a link to my website and I have done some research on the A340 unit. If helps great ...if not feel free to use it as a reference.

Cheers.

http://www.parts4transmissions.com/downloads/How_to_Identify_the_A340_A341_A343_OD_Planetary_Assemblies.pdf
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P4AT
Still looking for 4 Low


Canada
3 Posts
Member #12664

Posted - 02/11/2010 :  6:52:49 PM  Show Profile  Visit P4AT's Homepage Send P4AT a Private Message  Reply with Quote
quote:
Originally posted by bierend


So the tranny company gives a 12 month 12,000 mile warranty, but since it's been 19 months they were in no hurry to do any warranty work. The guy suggested an additive (Lube Gard) and checking the Throttle Cable and the Output Speed Sensor.

Does any of that sound right?


I sell Lubegard and Smart Blend , while both are very good products , they will not fix the issue you have described. If your fluid is burnt, you have more issues then just a fast fix. Assuming you want to keep the vehicle, the only way you’re going to fix the issue is for the unit to come out and be re-built. I know that’s not what you want to hear, but it is the reality of it.
Is there any metal in the pan?
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nhughes
Still looking for 4 Low


7 Posts
Member #12179

Posted - 02/11/2010 :  10:08:51 PM  Show Profile Send nhughes a Private Message  Reply with Quote
Deuce - It may sound dumb, but check your TPS, and TPS wires! here's why I say this...
UPDATE: I've figured out my shifting issue. The ECT IS reliant on the ECU for the TPS signal, I now have the original ECU "piggybacked" with my SDS. As soon as I re-installed the ECU and re-ran the TPS wires back to the ECU, it didn't shift prematurely, and it kicks down when I get on the gas. My only concern is sometimes, depending upon TP, it shifts and drops rpm's for a second, and then jumps back up, making for a "twitchy" shift. Some have recommended I drop the pan and clean up the solenoids... we'll see... - In other news, My truck was stolen on the 11th, found on the 26th, and It had been half-ass stripped. Check this out... They took my cat, and the rest of the exhaust from there back, (cause i guarantee it was a bitch), my stereo, amp, sds programmer, Optima Red Top, My BOV complete with that section of intake, and all my personal items inside - Ipod, Streamlight Stinger, Camera (with ex girlfriend nudie pics LOL), tools (great for helping break into and steal more cars), GPS, knives, fire extinguisher, etc, they even got my receipt for my long block cause they used my back-pack to carry stuff and it was in there with other receipts, even felt the need to take a wooden tobacco pipe! I NOW DESPISE THIEVES! But here's the funny part, they didn't take the charger for the Streamlight, and of course the programmer is useless unless you have the SDS ECU, and why wouldn't a theif have pulled for screws to take an MSD DIS-2, that'd practically fit in their back pocket? Of course I am glad they didn't but come on! They must have spent 30 min. on that exhaust! And the stereo was a "rampage". I'm guessing it was 10 years old. My insurance wanted to "total" my truck. Almost no damage was done to the body or interior. They said, "It's worth $2800".(anyone see the 87 4runner go for $15,000 on ebay this last week? it was a beauty) I wouldn't let them leave me with a salvage title, so I showed them over 7k in receipts, and managed to fight, and "win", almost $1800, before my $500 deductible. So, I barely got enough to replace the parts, and do all the labor myself. Now, it's alarm time. maybe some toxic gas to fill the cab if it's started without my handprint or something. Ha Ha - Removable steering wheel perhaps? - Any tips besides the obvious kill switch ideas?

86 22rtec 4x4 slightly modified, stolen, and recovered.
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Scotty
Admin


ADMINISTRATOR

$ DONATOR

USA
8694 Posts
Member #77

Posted - 02/13/2010 :  2:08:42 PM  Show Profile  Visit Scotty's Homepage Send Scotty a Private Message  Reply with Quote
Kill switch is the best mod you can do.

Scotty


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weaselman
Still looking for 4 Low


USA
1 Posts
Member #12759

Posted - 03/31/2010 :  12:37:44 PM  Show Profile Send weaselman a Private Message  Reply with Quote
so i just acquired my first turbo automatic 4runner. its an 87.

i fixed the burned out overdrive bulb.

now when im just crusing around, it blinks. what does this mean?

if i turn overdirve off. the light will come on and stay on. but as soon as i turn overdrive on. the light goes out and starts to blink every so often.. there is no pattern. just random blinks.
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