Need some Gearhead Advice
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Forum Name: Miscellaneous / Off-topic
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URL: http://www.rpod-owners.com/forum_posts.asp?TID=5138
Printed Date: 17 May 2025 at 6:39pm
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Topic: Need some Gearhead Advice
Posted By: fwunder
Subject: Need some Gearhead Advice
Date Posted: 08 Aug 2014 at 12:33pm
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Budward really got my interest going when he mentioned the Torque App/OBD2 link. Torque is Android specific so I found http://itunes.apple.com/us/app/engine-link-obd-ii-vehicle/id591557194?mt=8 - Engine Link for iPhone and bought an http://www.amazon.com/dp/B00HVV60HI/ - 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!  Thanks.  Edited to add following link which seems well written and answers the question: http://strtransmission.com/transmission%20fluids.pdf - http://strtransmission.com/transmission%20fluids.pdf ------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Replies:
Posted By: fwunder
Date Posted: 08 Aug 2014 at 3:05pm
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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 - http://www.rpod-owners.com/forum_posts.asp?TID=3927&PN=1&title=transmission-oil-temp Thanks anyways! fred ------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Posted By: techntrek
Date Posted: 08 Aug 2014 at 8:01pm
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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. ------------- Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ http://www.rpod-owners.com/forum_posts.asp?TID=1723 - Pod instruction manual 
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Posted By: fwunder
Date Posted: 08 Aug 2014 at 9:29pm
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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 ------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Posted By: Budward
Date Posted: 09 Aug 2014 at 11:41am
From what I've read the 4.0L 1GR-FE Toyota has no oil temp sensor
 I hope that is wrong, because I'd like to see it too! ------------- 2014 179 Towed by a 2015 Ford Transit Diesel Supervised by a German/Aussie mix and a Labradoodle! |
Posted By: fwunder
Date Posted: 09 Aug 2014 at 6:36pm
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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
------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Posted By: techntrek
Date Posted: 09 Aug 2014 at 6:51pm
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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. ------------- Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ http://www.rpod-owners.com/forum_posts.asp?TID=1723 - Pod instruction manual
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Posted By: CharlieM
Date Posted: 09 Aug 2014 at 7:14pm
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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.
------------- Charlie Northern Colorado OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD |
Posted By: fwunder
Date Posted: 09 Aug 2014 at 7:20pm
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 ------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Posted By: fwunder
Date Posted: 09 Aug 2014 at 7:23pm
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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 ------------- 2014 RPod 178 => https://goo.gl/CV446f - MyMods and Buying Habits 2008 4Runner Limited 4.0-liter V6 Yes, those are wild ponies dining on grass while dumping tanks! |
Posted By: CharlieM
Date Posted: 09 Aug 2014 at 7:54pm
Sorry Guys, I missed that you were looking for engine oil, not AT oil temps. Old age.. old brain...Ya know? ------------- Charlie Northern Colorado OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD |