R-pod Owners Forum : Need some Gearhead Advice https://www.rpod-owners.com/ This is an XML content feed of; R-pod Owners Forum : Miscellaneous / Off-topic : Need some Gearhead Advice Copyright (c) 2006-2009 Web Wiz Forums - All Rights Reserved. Sat, 30 May 2026 15:09:08 +0000 Sat, 09 Aug 2014 19:54:45 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.64 360 https://www.rpod-owners.com/RSS_post_feed.asp?TID=5138 R-pod Owners Forum https://www.rpod-owners.com/forum_images/web_wiz_forums.png https://www.rpod-owners.com/ Need some Gearhead Advice : Originally posted by fwunderCharlie,... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49916#49916 Author: CharlieM
Subject: 5138
Posted: 09 Aug 2014 at 7:54pm

Originally posted by fwunder

Charlie, transmission temps are pretty easy in 4th and 5th gen 4.0Ls. It seems the engine oil temp/pressure either have secret sensors or no sensors.

fred


Sorry Guys,

I missed that you were looking for engine oil, not AT oil temps. Old age.. old brain...Ya know?
]]> Sat, 09 Aug 2014 19:54:45 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49916#49916 Need some Gearhead Advice : Charlie, transmission temps are... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49913#49913 Author: fwunder
Subject: 5138
Posted: 09 Aug 2014 at 7:23pm

Charlie, transmission temps are pretty easy in 4th and 5th gen 4.0Ls. It seems the engine oil temp/pressure either have secret sensors or no sensors.

fred
]]> Sat, 09 Aug 2014 19:23:05 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49913#49913 Need some Gearhead Advice : Originally posted by techntrekWhat... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49912#49912 Author: fwunder
Subject: 5138
Posted: 09 Aug 2014 at 7:20pm

Originally posted by techntrek

What about adjusting the oil formula so it starts out closer to ambient, then see if it rises up to about 200 F?  It will take much longer than the coolant temp to come up to full temp, maybe 20-30 minutes.

Yeah, I'll try that Doug when we get back from...wait for it...the annual family crab feast!

Taking the sooby down to MD tomorrow.

fred
]]> Sat, 09 Aug 2014 19:20:13 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49912#49912 Need some Gearhead Advice : FWIW my 2013 Tacoma 4.0L V6 has... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49911#49911 Author: CharlieM
Subject: 5138
Posted: 09 Aug 2014 at 7:14pm

FWIW my 2013 Tacoma 4.0L V6 has the same  1GR-FE engine code and it does report both T1 and T2 transmission temperature codes. The ScanGauge reads both. The codes for the ScanGauge are a different format so I can't help there, but the data is there and it must come from the transmission via the on-board computer. The Tacoma dashboard also has an AT over-temp idiot light but who knows what it's set for.]]> Sat, 09 Aug 2014 19:14:28 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49911#49911 Need some Gearhead Advice : What about adjusting the oil formula... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49909#49909 Author: techntrek
Subject: 5138
Posted: 09 Aug 2014 at 6:51pm

What about adjusting the oil formula so it starts out closer to ambient, then see if it rises up to about 200 F?  It will take much longer than the coolant temp to come up to full temp, maybe 20-30 minutes.]]> Sat, 09 Aug 2014 18:51:34 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49909#49909 Need some Gearhead Advice : Spent way too much time searching... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49907#49907 Author: fwunder
Subject: 5138
Posted: 09 Aug 2014 at 6:36pm

Spent way too much time searching the forums. Closest thing I could find was in Toyota GT86 forums. Figured I'd try it:

2101,Oil temperature t1,-40,215,°C,AC-40,0
2101,Oil temperature t2,-40,215,°F,(A - 40)*9/5 + 32,0

Interesting that PID 2101 does reflect data. Just not the right data. Both formula spit back -40. Didn't try running with it to see if number changes. I doubt it.

I think I did read that the late model FJCs don't report oil temp. Still trying to figure if 08 4runner 4.0 does.

Interesting side is how MPG is calculated in Engine Link:

MPG = (14.7 * 6.17 * 454 * VSS * 0.621371) / (3600 * MAF / 100)
MPG = 710.7 * VSS / MAF

MPG - miles per gallon
14.7 grams of air to 1 gram of gasoline - ideal air/fuel ratio
6.17 pounds per gallon - density of gasoline
4.54 grams per pound - conversion
VSS - vehicle speed in kilometers per hour
0.621371 miles per hour/kilometers per hour - conversion
3600 seconds per hour - conversion
MAF - mass air flow rate in 100 grams per second
100 - to correct MAF to give grams per second

Prolly would be a lot easier if manufacturers would give access to all the sensors and PIDs and you could just measure injector flow rate.

fred
]]> Sat, 09 Aug 2014 18:36:10 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49907#49907 Need some Gearhead Advice : From what I've read the... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49890#49890 Author: Budward
Subject: 5138
Posted: 09 Aug 2014 at 11:41am

From what I've read the 4.0L 1GR-FE Toyota has no oil temp sensorUnhappy
I hope that is wrong, because I'd like to see it too!
]]> Sat, 09 Aug 2014 11:41:38 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49890#49890 Need some Gearhead Advice : Thanks Doug. The formula I have... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49858#49858 Author: fwunder
Subject: 5138
Posted: 08 Aug 2014 at 9:29pm

Thanks Doug. The formula I have for oil temp doesn't seem to be working for the 4Runner:

015C,Engine oil temperature,-40,419,°F,(A - 40)*9/5 + 32,0

Budward, you got a working formula?

Thanks!

fred
]]> Fri, 08 Aug 2014 21:29:00 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49858#49858 Need some Gearhead Advice : If you can get it to show you... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49856#49856 Author: techntrek
Subject: 5138
Posted: 08 Aug 2014 at 8:01pm

If you can get it to show you oil temps, that one is pretty vital.  Your tranny temp and coolant temp look normal for daily driving.  You'll see an oil temp about 10 degrees higher than coolant, usually about 200-205, until you start towing.]]> Fri, 08 Aug 2014 20:01:46 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49856#49856 Need some Gearhead Advice : I should have searched the forum... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49846#49846 Author: fwunder
Subject: 5138
Posted: 08 Aug 2014 at 3:05pm

I should have searched the forum first.

Its all right here...

http://www.rpod-owners.com/forum_posts.asp?TID=3927&PN=1&title=transmission-oil-temp

Thanks anyways!

fred
]]> Fri, 08 Aug 2014 15:05:58 +0000 https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49846#49846 Need some Gearhead Advice : Budward really got my interest... https://www.rpod-owners.com/forum_posts.asp?TID=5138&PID=49839#49839 Author: fwunder
Subject: 5138
Posted: 08 Aug 2014 at 12:33pm

Budward really got my interest going when he mentioned the Torque App/OBD2 link. Torque is Android specific so I found Engine Link for iPhone and bought an OBD2 Scanner for a total of $30.

Seems to work very well (for what I know) in both 4Runner and Subaru Forrester. The scanner easily plugs into both vehicles.

Pictured below is a screen shot of one of the many screens with some custom readouts I configured. Parked, of course.

My question concerns Transmission Pan temp. The picture below is driving around (country) town for an hour or so with ambient temp about 75. From what I understand those numbers are right within spec for an '08 4Runner. My understanding is that I should get concerned if Transmission Temp rises above 240 when towing and that transmission fluid is pretty much destroyed above 300.

Does that make sense? Although I didn't have this on our latest big podyssey, it's prolly a good thing as this is more distracting than texting and driving! Wink

Thanks. 



Edited to add following link which seems well written and answers the question:

http://strtransmission.com/transmission%20fluids.pdf


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