Is it possible to overcool the tranny

[acidstorm]

Is it possible to overcool the tranny?
It is getin cold here and I have extra tranny cooler instaled, my tranny temp gauge says that temp is never going above 100. On summer with hard trafic i reached 165, From what I know 150 is optimum, is 100 OK or to cold?
BTW my car is 97GST some free mods, exhaust, K&N FIPC (?) bost and tranny temp gauges, Trenny temp sender is instaled after the coolers.
Thanks

 

[98autogstspyder]

well the same reason you warm up a car in the morning before you drive it. You dont go WOT right after you start it do you? no, you wait for it to properly warm up and then go at it. In your case i guess the extra cooler in the winter is making so that your tranny is never completely warmed up. If you say 150 is optimum and your at 100, then you've answered your own question right?

Tyler

 

[suicidal2af]

well the same reason you warm up a car in the morning before you drive it. You dont go WOT right after you start it do you? no, you wait for it to properly warm up and then go at it. In your case i guess the extra cooler in the winter is making so that your tranny is never completely warmed up. If you say 150 is optimum and your at 100, then you've answered your own question right?

Tyler

You really didn't answer much. He says 150 is optimum, and is well aware that he isn't at the optimum temperature...he asked if it was okay or if it would hurt anything.

 

[DSMeclipse4G63]

yes it is possible to "over cool" your tranny fluid. For autos heat and cold are the number one causes for failure, when your fluid isnt up to temp the dynamics of the fluid wont act properly and can cause the tranny to not shift right, and possibly affect seals by not allowing them to expand properly to seal. For example, my Girlfreinds mom pulled out of her driveway yesterday moring put the van in drive and the car wouldnt move. so like most people she wait a while scratched her head and when it was warm drove away. So when it was around 10 degrees the tranny wouldnt move, but when the fluid heated up to temp the car moved and shifted fine. She was dangerously low on fluid, and that goes to show you of the importance of fluid temps.

Sorry about the rant, but Id recomend ytou take off one of the coolers til summer.
Andrew

 

[98autogstspyder]

wasnt trying to be a smart ass or anything but sometimes when u write a question, all you gotta do is re read it and sometimes you can answer it yourself.

yea dsm eclipse is right. if that fluid doesnt get to the correct temperature it cant lubricate and function the way its supposed to.

 

[Jehu]

I think your girlfriend's mom's van did what it did because it was low on fluid, not because the fluid was cold. Trannys are designed to work with cold fluid too...how else are you supposed to warm it up except to drive? BUT you really shouldn't drive too agressively before the fluid warms up, just like you wouldn't run the engine too hard before it warms up.

I believe the specifications call for a normal running fluid temp of 160F or 180F. If it's too cold in the winter, try blocking your tranny cooler with cardboard etc.

 

[DSMeclipse4G63]

I think your girlfriend's mom's van did what it did because it was low on fluid, not because the fluid was cold. Trannys are designed to work with cold fluid too...how else are you supposed to warm it up except to drive? BUT you really shouldn't drive too agressively before the fluid warms up, just like you wouldn't run the engine too hard before it warms up.

I believe the specifications call for a normal running fluid temp of 160F or 180F. If it's too cold in the winter, try blocking your tranny cooler with cardboard etc.

I know it did what it did because it was low on fluid, I was just merely explaing what happens to fluid when it heats up and how temp affects the tranny. when the tranny heated up the fluid expanded and allowed for operation. I wasnt say that a cold tranny caused the problem, if thats what you thought.
Andrew

 

[acidstorm]

Thanks for your replys. I will disconnect or close it for now.

 

[Just Nasty]

I know it did what it did because it was low on fluid, I was just merely explaing what happens to fluid when it heats up and how temp affects the tranny. when the tranny heated up the fluid expanded and allowed for operation. I wasnt say that a cold tranny caused the problem, if thats what you thought.
Andrew

you just played both sides of the fence.

 

[DSMeclipse4G63]

you just played both sides of the fence.

what are you talking about? If you think I flip flopped, then you need to read my original post. I NEVER said that temp caused the car to not move in drive AGIN for the second time I am merely stating that temp has to do with everything, and he is running WAY too cold. Please read correctly before you post
Andrew