Engine/Transmission (1994 - 1998) Highest EGT for stock, standard duty 1996 auto transmission, while towing 10k lbs?

[JGranberry]

I don't want to leave the truck, trailer and contents on the side of the road due to modding the fuel system for power and the transmission failing/catastrophic failure. LMK the safest EGT #s if anyone has experience with and real-life data to post up. ATM, this is my only measuring tool, along with a good ear for shift points. TIA

 

[kenny61]

General consensus is 1250-1300 max for prolonged periods

 

[JGranberry]

Even for a stock, std. duty auto?

 

[hsmith]

Someone else chime in here. Don't know of a direct affect of egt's on transmission temps. Seems your main concern is the stock transmission.

 

[kenny61]

Max temp is max temp. A stock standard duty auto probably wont reach the max. the 24 valves and cr's can run a little hotter. Keep it where I said and you wont melt anything. Keeping the stock transmission together has little to do with EGT and more with torque applied to it

 

[JGranberry]

Thanx Kenny. BTW, hats off to you and the Corps for the service you provide! I deal with the gov/military contract for aircraft refueling everyday!

 

[Reddog1]

I cannot see where the EGTs have anything to do with the transmission. The transmission killer is the transmission temp. If I remember correctly, you are pushing it is the transmission is 250 degrees or more, especially for long periods of time. You create the highest temp when you idle with the transmission in gear or park. I typically put the transmission in neutral to warm it up when I first start it up in the AM, and put it in neutral at stop lights in hot weather. You also create a lot of heat, in the transmission, when backing up. Actually, that is the quickest way to overheat the transmission.

I do have a transmission temp gauge, and I personally think it is just about as important as the EGT gauge. I haul a truck camper, with truck and camper weighing 10,400 lbs. My trans is a DTT, with the high performance stuff.


Wayne

 

[tp0d]

180° is the normal operating temp for the transmission. Any prolonged running above that temp, the ATF starts to break down. Running on the torque converter only, unlocked, will bring temps up realll quick while towing. A stock, loose, converter doesnt help this situation. A lockup switch can help here, but ya gotta be real careful, at least initially (as you get used to it), so you dont burn up your stock lockup clutch.

If you have any doubts, add in an aftermarket cooler on the front of the rad. You would want to cut it into the hot outlet of the transmission, before the liquid cooler. Changing the fluid couldnt hurt either. .

As mentioned above, 1250-1300 egt's are acceptable for long periods.

good luck

-j