Normal Trans Operating Temperature

**Booba5185** · 05-01-2015

If I remember right it was something about moisture needed to be evaporated off. Naturally I can't find the article about it.

**theaceofspades** · 05-01-2015

I never heard of something like that. The main reason I wanna go stand alone is cause my stock lines are leaking and screwing in some fittings would be easier than buying new lines to just cut. Again

**Booba5185** · 05-01-2015

Yea, moisture gets into the transmission fluid just like the engine oil and needs to get baked out. Makes sense to me.

**theaceofspades** · 05-01-2015

Originally Posted by Booba5185

Yea, moisture gets into the transmission fluid just like the engine oil and needs to get baked out. Makes sense to me.

Hmm it does make sense.

**Booba5185** · 05-01-2015

I think the 150* is steep, really, I'd say anything over 120-130*F would be more than enough. You don't want it to take too long to get up to that temperature though. I've been tossing around the idea of getting a thermostat type thing. Something similar to this:
http://www.transmissioncoolers.us/708-4739P6.html

They have them built into oil adapter type stuff, so I'd have an external filter, thermostat, and temperature sender.

**Fivefingerdeathpunch** · 05-01-2015

It's not as critical in a transmission though, it's just a hydraulic pump. It just needs fluid to keep going, a motor can wipe out a bearing if oil dilutes enough.

I drive 5 miles a day on avg for the past 7 years, my trans temps maybe jump 40-50º in my short drives and even less in the winter. I just do one or two longer drives every other week in the winter to burn off the water in the motor.

**Booba5185** · 05-01-2015

There's plenty of bearings, friction material, and such in the transmission, it's just they aren't seeing combustion type "forces" (probably the wrong word for it) and carbon. Longevity is the name of the game, so anything to help that and keep my transmission running as close to 100% of it's efficiency as quick as possible is awesome in my book.

I live a mile from work, literally. In the cold months I let my car warm up for 10 minutes before driving it, then have a fun drive once a week.

**chris99gtp** · 05-02-2015

Originally Posted by Fivefingerdeathpunch

Also wouldnt hurt to make sure your duct work under the bumper isnt missing or damaged.

The lines do run across in that area and one would think that the rushing air past them does help cool them. I might be odd ball thinking here but it might be true that it helps.

Or maybe the factory cooler itself is semi plugged, it should stay near the coolant temp when you arent in traffic. I remember going about 240 miles without stopping and never saw over like 180.

Can you explain more about the duct work? Also, how would I check if the factory cooler is semi plugged?

**chris99gtp** · 05-02-2015

I need to take the car back to school tomorrow so any ideas on things I can do right now would be helpful

**theaceofspades** · 05-02-2015

Originally Posted by chris99gtp

I need to take the car back to school tomorrow so any ideas on things I can do right now would be helpful

Your gonna just have to drive it

**chris99gtp** · 05-02-2015

Alright. what's it take to put in a trans cooler? something I can do on the side of the street where my car is parked? Or should I have someone out there install it?

**theaceofspades** · 05-02-2015

Originally Posted by chris99gtp

Alright. what's it take to put in a trans cooler? something I can do on the side of the street where my car is parked? Or should I have someone out there install it?

Umm I did mine in like 4 hours time. But that was working slow and bsing and taking my time to not **** anything up

**ItHurtz** · 05-02-2015

I put one the truck took 15min........ new hose to hard line, isnt that hard. Assuming that is your problem

**Booba5185** · 05-02-2015

The only PITA part of it all is taking all the plastic ducting **** off the front of the car. After that it's cake work.

**jteske88** · 05-03-2015

With all this trans temp talk I could of swore this was a GXP post. All of a sudden I don't feel bad with my 195 degree temps.

**chris99gtp** · 05-03-2015

Little update, took the car back to school. Was hovering around 200. Never saw 210. Engine coolant was around 190 the whole time. It took about an hour to get to 190 for the trans temp. I'm going to call the shop who installed it 2 years ago and see what they say. Most likely going to end up buying a cooler.

**J57ltr** · 05-03-2015

One thing we're missing here is the effect of torque converter slippage, this contribute to heating the trans above engine coolant temp. So in traffic it will heat up about 10-30* higher on some occasions. My drive home is 45 mph stop n go, to a 50 mph 2 mile run. By the time I get to the freeway I'm back down to engine coolant temp. I do notice that start and stop heats up my trans more. But cruising I'm at least as low as engine temp or lower. I would assume the site has wiring schems on how to wire the fans on from a switch.

Jeff

**Booba5185** · 05-03-2015

I hope they say to put on on, otherwise they don't really know what they are talking about. What's strange is the transmission is running hotter than the engine, something is up.

**J57ltr** · 05-03-2015

At cruise, that would have to be ducting, or a blockage/ defective trans cooler core, maybe no lockup but I think even at 80 there would be about 230 RPM slippage, don't think that would be enough, ues it's a higher stall converter.

Jeff

**chris99gtp** · 05-03-2015

They've been a good shop that only does transmissions in my area. My family has had at least 3 transmissions rebuilt by them without any problems. So I trust em but I want to hear what they say about it. I'll let you guys know what They say tomorrow.