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Old 08-22-2018, 01:19 AM #31
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I’m just gonna measure how much comes out and put the same amount back in.
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Old 08-22-2018, 11:48 AM #32
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Quote:
Originally Posted by EddieV4runnin View Post
I’m just gonna measure how much comes out and put the same amount back in.
You will likely spill a little when trying to refill. I would have a back up plan to do the temp check just in case. Temp check is not hard to do.
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Old 10-19-2019, 01:15 PM #33
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Torque app with bluetooth OBD reader does not show tranny temp.

When doing the jumper pin method I get the shift indicator to change to D when in park. I pulled the jumper and the tranny pan feels quite warm. Does the D start to blink when it's over temp or the A/T Oil light? The overflow is still pouring out and I put back about what came out. 4 quarts or so drained with only front jacked up. Refill and check procedure the tranny pan is level with rear jacked up as well. Am I doing the check procedure wrong?

ETA: The D indicator started blinking. Fluid still coming out of overflow at a good rate.
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Old 10-19-2019, 01:26 PM #34
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OBDLINK MX+ shows trans temp fyi




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Old 10-19-2019, 01:35 PM #35
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Thanks for the reply. The pan feels plenty warm and fluid is as well but not burning me. The D indicator did start to blink so I think the temp is ok I just have qualms about letting all that fluid drain out. This is the second time I have done this and the first I replaced the amount that came out so I don't see where all this extra fluid is coming from.
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Old 10-19-2019, 02:00 PM #36
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Quote:
Originally Posted by QwikKotaTx View Post
Thanks for the reply. The pan feels plenty warm and fluid is as well but not burning me. The D indicator did start to blink so I think the temp is ok I just have qualms about letting all that fluid drain out. This is the second time I have done this and the first I replaced the amount that came out so I don't see where all this extra fluid is coming from.
Flashing D is an over-temp indicator. The fluid volume expansion per degree is substantial; I'd adjust again at the right temp.
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Old 10-19-2019, 02:34 PM #37
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Hmmmm. I understand the procedures but don’t understand why? If your rig is sitting in the driveway/garage overnight and you pull the transmission drain plug and get 3 quarts of cold fluid out can’t you just put 3 quarts of cold fluid back in? If you put back in Exactly the same amount why even mess with fluid temperatures?
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Old 10-19-2019, 02:50 PM #38
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Quote:
Originally Posted by cmills View Post
i have been trying to get the transmission to go into temp check mode by jumping pins 4 and 13 in the OBD plug under the dash. Has anyone been able to do this on the 5th gen 4runners, I know you could on the tacomas and figured this would be the same.
I use the scan gauge II .. no problem .. also other engine info .
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Old 10-19-2019, 03:08 PM #39
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I let it cool down some and then opened the overflow plug up. Only about 5 or 6 ounces came out so I stopped worrying about it. Are the drain plug threads easy to strip? I did not get my torque wrench to click with a new crush washer even after it seated. Steel would be hard to strip.
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Old 10-19-2019, 03:09 PM #40
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Quote:
Originally Posted by DeltaWhiskey View Post
OBDLINK MX+ shows trans temp fyi




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This is a great idea!! Can you monitor All your temps while driving for instant verification? If I’m working my rig hard I’d like the option to look at all my temps at a glance.
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Old 10-19-2019, 03:11 PM #41
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Just get a cheap bluetooth ODB plug and use an app with your iPhone. There are actually 2 Trans temp sensors. One for the Tq converter and one post cooler.
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Old 10-19-2019, 03:12 PM #42
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Quote:
Originally Posted by Hammer0313 View Post
Hmmmm. I understand the procedures but don’t understand why? If your rig is sitting in the driveway/garage overnight and you pull the transmission drain plug and get 3 quarts of cold fluid out can’t you just put 3 quarts of cold fluid back in? If you put back in Exactly the same amount why even mess with fluid temperatures?
That would work if you were 100% sure that the transmission was properly filled the last time the fluid was changed and no fluid loss had occurred in between.

Jumpering the pins is a piece of cake - takes no time at all. Most easily accomplished if you make a small jumper gadget that eliminates the need to crawl down below and squint looking for the #4 and #13 ports in the OBD connector. That said, the jumper method is documented in the FSM.

Pic of gadget below - taken from tacomaworld.com - gadget sold by all kinds of people on ebay. Here's one:

OBD2 OBD-II Case Enclosure with Connector J1962m Plug 16pin Male ELM327 2 PACK | eBay
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transmission temp check mode-obd-jumper-jpg 
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Old 10-19-2019, 03:26 PM #43
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Quote:
Originally Posted by Hammer0313 View Post
This is a great idea!! Can you monitor All your temps while driving for instant verification? If I’m working my rig hard I’d like the option to look at all my temps at a glance.


Yes you can


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Old 10-19-2019, 04:09 PM #44
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Quote:
Originally Posted by QwikKotaTx View Post
Torque app with bluetooth OBD reader does not show tranny temp.
You have to add a custom PID to see the trans temps with the torque app. I just did it for a trip while towing and it worked great. Link to the instructions below from a previous thread.(note that you have to have torque pro($4.99) to add the custom PID. The free one lets you add it but doesnt function)

Torque Pro Transmission Temp 5th Gen
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Old 10-19-2019, 05:58 PM #45
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Quote:
Originally Posted by DeltaWhiskey View Post
Yes you can


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Thank you sir! This the best idea I have seen on this thread, use it to monitor all your temps during your normal use of the vehicle and get live tranny temps when doing your transmission service. It’s a win win!
Just placed my order, thanks DeltaWhiskey.
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