So my truck was running fine no problems...I decided to do a tune up:
AFE air filter
Differential / transfer case fluid swap
Intake system cleaning (3M kit)
Everything seemed normal...I did all the work myself..I'm mechanically inclined...
Well shorty after I ate the entire reservoir of coolant. I just so happened to be doing coolant swap the day I noticed it was on empty. I flushed the system according to manual and filled it back up. Now after a tank of gas it's back down to empty. WTF?
No overheating, no smoking, but tail pipe seems to collect a lot of moisture...no obvious leaks anywhere. Possible headgasket leak?
Please help troubleshoot.