I couldn't go without heat here.

 

just an update, ive been trouble free since i added 1 cup of evil orange. i only have 30,000 on mine and have been having to add avout a cup every 3 months since ive owned the car. i've had the dealer pressure test the system and it seems fine. thanks mamonte for pointing out the water pump, thats the next place ill check.

 

I have the same 3.9 and no problem that I know of? heat works and remote start works and has heat when I get in. 50K on it!!

 

This was the first time I've had the problem.. But I added the coolant and everything is back to "normal" now.. The coolant hasn't gone down at all.. The only pain that I had was adding the correct amount.. It isn't easy to see the side of the coolant jug and where the hot and cold lines are located so I just added til I felt it was where it should be.

 

Just continue to keep an eye on it...Its possible that is so small of a leak that you will not notice a drop in coolant level for a month. Thats how my leaking water pump started out, so small it could not even be traced.

 

i know i hate this!! what i've done in the past, i'll add a little at a time, then stick a flashlight in the tank which provides a good contrast so you can see the lines and coolant level.

 

Hahaha! I do the exact samething...The flash light lights up the Red coolant, and it glows through the tank.

 

Well I am taking my car in to get it pressure tested on Monday morning.. Hopefully it isn't the water pump, but we shall see.. I'm hoping that it is only a cracked hose somewhere.

 

x3 on the flashlight, and im not posative but i think theres only 1 line to add up to. the other day i was doing some work and noticed a dirty line in my engine.
red - dirty/leaky
blue - clean
does anyone know what these lines are for there right underneth the intake to the left

 

I can't tell for sure, but they look like the transmission cooler lines.