Oh no, coolant loss

[Dbese]

So my 4.6L EB has been losing coolant at a crazy rate lately. Nearly emptying the overflow tank every couple weeks. These past couples days, I've noticed coolant nearly the tailpipe. I didn't know whether or not the head gasket was blown, but I'm starting to think I have my answer. Is there a possibility of any further damage?

 

[87350gta]

I would guess it's your intake manifold. They are prone to failure in the 4.6.

 

[extra-medium]

Check your lines going to and from your heater core.

 

[Dbese]

Definitely identified the intake manifold and have plans to change that very soon. That was my initial thought with the coolant loss, but the coolant near the tailpipe is what is beginning to bother me more. Wondering if the intake manifold leak is able to push it that far or if it has gotten into the head

 

[87350gta]

Do you have rear heat and a/c? Could be one of the rear coolant lines, they are right above the tailpipe.

 

[Dbese]

This might sound extremely noobish but, is rear heat and A/C defined by having actual switches back there for control? I just have the vents above the cup holders in the middle seats, vents can be opened and closed. Didn't think that counted as rear heat and a/c but I've been wrong before.

Do you have rear heat and a/c? Could be one of the rear coolant lines, they are right above the tailpipe.

 

[2Trux]

This might sound extremely noobish but, is rear heat and A/C defined by having actual switches back there for control? I just have the vents above the cup holders in the middle seats, vents can be opened and closed. Didn't think that counted as rear heat and a/c but I've been wrong before.

Rear heat and A/C have separate controls, and vents in the headliner in the back.