I've had the truck for 5,500 miles, and I was a little low when I checked today. I checked last month and it was fine...any one have any ideas why it would burn fluid?

 

Can't burn it. Has to leak it. With the old vacuum modulated units was possible to suck it into the engine if the modulator went bad and burn it in the engine. I've not ever added any.

 

I know very little about transmissions. I haven't noticed any fluid on the ground where i park, and the lines looked okay.

 

Might not be the lines. could be the pan gasket, if some one has changed it and used a cork gasket it could leak. You have to be carefull with those gaskets. IMO. But could be other places as well. (front seal, tranny cooler,ex) Just have to check it out. Did you check it when it was hot?

 

The engine was reasonably warm. The truck ONLY has 5,500 miles total, so I know the gaskets haven't been changed. It's weird, thats for sure.

 

It's under warranty right? Make the stealership check it out. Then if you have tranny trouble later you can show you brought it in and they didn't fix it.

 

Couldnt have said it better.

 

Now that is a plan.

 

Just a little incline will make it check wrong. Good level surface when checking it?

 

And hot and cold....

Also check the rear seal.