69mach1

When i drive my truck (no trailer) my trans temps run about 195 -201 is this normal or should i invest in a larger trans cooler? What are you all seeing when you drive?

kozal01

iTrader: (2)

That's normal for the newer trucks. Ford raised the operating temp of the transmissions up to match the engine temps. It's supposed to be more efficient that way so they say.

jcain

Normal. Trans sits around 203 dragging 6500+lbs up a 10% grade at 65 for 3 miles

69mach1

Ok i was worried for a while that seemed kinda high to me but i guess if that's the norm then i am cool with it. Thanks for the reply.

Georgiaboy5.0L

Mine operates at 197....even in 98 degree summer heat......204 has been the highest I noticed............so yes i think its normal.............but i will be doing a fluid change at 50K.

tarheel - 2

Just completed a 500 mile trip on every kind of highway you can imagine running at 55 to 75 mph. Trans ran at 195 - 197. Outdoor temp in the 30's, solo (no trailer). I think you have completely normal temps.

debate

Usually shows 195 degrees after twenty minutes or so. Noticed 201 degrees on the interstate in July, and 204 degrees when I got it stuck in the mud.

69mach1

ok cool i didnt know for sure if that was a normal temp but i guess it is if we all are running the same temps. thanks for the responses.

smokeywren

Does anyone know exactly where the tranny temp sender is located on a Select Shift 6-speed tranny? I know the location of the sender can determine the red line for tranny temp. If it's in a location that will give sump temp, then 225° is the redline. If it's in the valve body the way it is on the Ford 4R100 tranny in a 7.3L diesel, then the red line is 240°.

The red line matters only when under severe conditions, such as dragging a heavy trailer up a steep grade at a slow speed so the torque converter doesn't lock - for example the last coupla miles up a mountain trail to a hunting camp. An unlocked torque converter working hard creates a volcano worth of heat that can overcome the tranny cooler(s) on most vehicles. And allowing the tranny to get hotter than the redline can kill the tranny very quickly.

My Mistress

I was concerned about the high temp. also. I've observed 207 degrees in summer temp. at high speed with 6.2 tuned. I bought a deeper aluminum pan w/ fins from a company called Transmission Automatic but haven't installed it yet. I'm concerned it may void warranty . They claim it will keep it cooler and will help performance . Any input on this will be appreciated .
The 6r80 uses a special synthetic fluid that can only be purchased from Ford. The new pan holds 3 extra quarts .