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Transmission Cooler

hawaiianstiln

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hawaiianstiln Enthusiast

hawaiianstiln

Posted
Posted

Don't have a picture, but am trying to figure out if the smaller radiator sitting in front of my main radiator is the transmission cooler or not? Is there a "oil cooler" and could that be it too, or is an oil cooler and transmission cooler the same thing?

 

I have a 2006 LT2 package silverado, 4x4, Z71 and all it says on my sticker when I bought it: HD trailer equipment

 

It doesn't say anywhere on the sticker or paperwork oil cooler or transmission cooler.

 

Do I just need to post my VIN to find out?

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

Keith,

 

I do not believe you could even opt for an engine oil cooler on a 1500. You can on a 2500. Like Mike has said, you are looking at the aux trans cooler.

slimjim2525 Senior Enthusiast

slimjim2525

Posted
Posted
Keith,

 

I do not believe you could even opt for an engine oil cooler on a 1500. You can on a 2500. Like Mike has said, you are looking at the aux trans cooler.

:ughdance:
hawaiianstiln Enthusiast

hawaiianstiln

Posted
  • Author
Posted

now i'm really confused.. LOL!!!

 

So then that is a transmission cooler? If not and it's an "oil cooler", then I was going to buy a transmission cooler before I haul the boat 2200 miles total

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted

Look for RPO code "KNP" in your glovebox,Thats the code for the auxilary tranny cooler.

You should also have an auxilary power steering oil cooler,Its located on the drivers side of the A/C condenser,Its a tall thin finned cooler (about 2" wide x 15" tall)

 

Trey's right,there was no engine oil cooler on the '99-'07 1/2-tons,unless it was an "SS",a "Denali" or a "VortecMAX" truck with the "LQ9" 6-liter.

And even that one was not a separate auxilary engine oil cooler,It just ran the engine oil into the drivers side tank of the radiator.

And even on the '07-up GMT900 trucks,you have to get the "L76" 6-liter to get an engine oil cooler.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
now i'm really confused.. LOL!!!

 

So then that is a transmission cooler? If not and it's an "oil cooler", then I was going to buy a transmission cooler before I haul the boat 2200 miles total

 

Its not an "engine" oil cooler,Its an "auxilary transmission oil" cooler.

hawaiianstiln Enthusiast

hawaiianstiln

Posted
  • Author
Posted

so basically if this small looking radiator that looks like one of those in the pictures is sitting there already, i'm assuming it's an aux transmission cooler then.. Either way I will check the code later today.

MS3DALE Senior Enthusiast

MS3DALE

Posted
Posted
so basically if this small looking radiator that looks like one of those in the pictures is sitting there already, i'm assuming it's an aux transmission cooler then.. Either way I will check the code later today.

Yep,The one in the picture is actually an '88-'98 GMT400 truck that someone added an additional auxilary cooler to the factory auxilary cooler,but to answer your question...Yes,If you have something that looks like one of those you have an auxilary tranny cooler.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
Posted

sorry, that is all the color pics that I could find on the web, I didnt feel like copying over the GM Diagrams this time around

nbscanuck Enthusiast

nbscanuck

Posted
Posted

Good job Hawaii, doin' the homework. Aloha from the Diablo forums :ughdance:

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