Trans Temp ??????

[00Silverado4x4]

I did some research and they may have changed it on these new K2 trucks to where there is no externally mounted transmission cooler available anymore.

I just looked on gmc.com and the external transmission cooler is still an option. Now I didn't dig into when it's added to what package just the option by itself.

[Silverado-Hareek]

I just looked on gmc.com and the external transmission cooler is still an option. Now I didn't dig into when it's added to what package just the option by itself.

 

Weird I did the same thing on Chevy's website and couldn't find the option. Maybe I missed it. Either way, in my opinion, it's not a necessary feature unless you tow something almost daily. Casual towing will not be an issue as long as you have the standard tow package as most trucks do.

[Jon A]

All these trucks with V8's have an in-tank radiator tranny cooler (more of a heater most of the time) and an external air-oil cooler. There's absolutely no advantage to running cold transmission fluid. Most quality aftermarket thermostats for use with aftermarket transmission coolers don't even begin opening until 180 degrees and aren't fully open until 190-200. Temps around 200 degrees are perfect. Unless you're seeing 230+ you have nothing to worry about.

[Silverado-Hareek]

All these trucks with V8's have an in-tank radiator tranny cooler (more of a heater most of the time) and an external air-oil cooler. There's absolutely no advantage to running cold transmission fluid. Most quality aftermarket thermostats for use with aftermarket transmission coolers don't even begin opening until 180 degrees and aren't fully open until 190-200. Temps around 200 degrees are perfect. Unless you're seeing 230+ you have nothing to worry about.

 

Thanks for the information that's great to know!

[paulv]

Thanks for all the input,,,,, I feel more at ease knowing the temp is normal.

[chuckwi11]

I have RPO code KNP installed - Transmission Oil Cooler... I'll have to look and see if it is an external to the radiator.

[typhoon186]

Agree 200 degrees is not a problem. Personally, I would prefer a little less. If you tow some weight, watch that temp, especially in hot weather. High temperature is the death of an automatic transmission. I read something years back about every 10 degree rise in temp = XX% reduction in transmission life. I don't recall what the % was but it was significant. I installed the PML deep transmission pan that holds 2 extra quarts. Now the extra 2 quarts does not make it run cooler but will add a little buffer to the time it takes to heat up under heavy load. The better benefit, I think, is the new pan now extends down into the airstream and has cooling fins on the aluminum pan to help dissipate heat. I also replaced the fluid that was removed with 7.5 quarts of Amsoil full synthetic equivalent. It is made to withstand high temps better. All that is not cheap by any means. Not an easy install either. You either have to drop your exhaust from the manifold or raise the rear of the tranny because some genius GM engineers put that exhaust cross over pipe directly under, and very close to, the transmission pan. They even had to flatten the exhaust pipe for clearance! And so at idle in traffic you get the extra heating benefit of a hot exhaust pipe directly under your tranny pan, brilliant! I found a nice clamp-on heat insulator made just for clamping on an exhaust pipe and put it in that location. I was installing long tube headers anyway and figured I might as well do it all at the same time.

 

[Archaic2021]

My 14 doesn't have a trans temp

[Ventilator]

My 14 doesn't have a trans temp

It should. What model?

 

It is probably just unchecked in your settings. Go in your settings and check it. Then it will be in the rotation when scrolling through your info.

[Archaic2021]

It should. What model?

 

It is probably just unchecked in your settings. Go in your settings and check it. Then it will be in the rotation when scrolling through your info.

 

I be dang...learn something new everday! It was unchecked.

[gone_fishing]

Agree 200 degrees is not a problem. Personally, I would prefer a little less. If you tow some weight, watch that temp, especially in hot weather. High temperature is the death of an automatic transmission. I read something years back about every 10 degree rise in temp = XX% reduction in transmission life. I don't recall what the % was but it was significant. I installed the PML deep transmission pan that holds 2 extra quarts. Now the extra 2 quarts does not make it run cooler but will add a little buffer to the time it takes to heat up under heavy load. The better benefit, I think, is the new pan now extends down into the airstream and has cooling fins on the aluminum pan to help dissipate heat. I also replaced the fluid that was removed with 7.5 quarts of Amsoil full synthetic equivalent. It is made to withstand high temps better. All that is not cheap by any means. Not an easy install either. You either have to drop your exhaust from the manifold or raise the rear of the tranny because some genius GM engineers put that exhaust cross over pipe directly under, and very close to, the transmission pan. They even had to flatten the exhaust pipe for clearance! And so at idle in traffic you get the extra heating benefit of a hot exhaust pipe directly under your tranny pan, brilliant! I found a nice clamp-on heat insulator made just for clamping on an exhaust pipe and put it in that location. I was installing long tube headers anyway and figured I might as well do it all at the same time.

 

Thanks for posting a pic of your new pan. It would be nice to have a drain plug for the transmission oil. I might have to look into one of those someday.

[Black02Silverado]

Here is a pretty cool chart that gives you an idea as to what happens at what temperatures. TCI is a reputable brand. You should be good at the 198 considering dexron VI is a synthetic blend. To get even better protection, you could run a full synthetic like Mobil 1, Redline or AMSOIL.