robp2175

Everything seemed to be fine for about two weeks, but I am now starting to lost coolant again. This makes no damn sense. The temp has been in the 90's here all week, but I still should not be losing coolant. What else could it be?

PSUmaninSC

Did you address the problem that caused the head replacement to be necessary? Radiator, hoses etc?

robp2175

The engine has not been overheating and the mechanic did not notice any other problems, but I dont know how hard he looked.

PSUmaninSC

How did you manage to crack your head without overheating the engine? Seems odd.

Do you see any smoke, or smell coolant burning? I'd replace all the radiator hoses first, and if it persists see if maybe your radiator is cracked.

Kalali

Unfortunately it is not really that odd. They do crack for no obvious reason. Mine did and I never overheated then engine.

As for the coolant loss, how much are you loosing? Assuming there are no visible external leaks, check your oil level closely.
Hopefully they didn't mess up the head gasket during the reassembly. That is not very likely but possible if they moved the head around on the block to line up the dowels. If the coolant loss is excessive you may want to run a leak down test to isolate the issue. Just as a reference, I also replaced the head just like you did and my coolant level has not moved at all when the engine is cold. It does go up about an inch or so after a long drive in 95F temperature.

freegdr

system been pressure checked including cap?

robp2175

The head was cracked when I bought it.

I have not had it pressure tested because I was sure I knew what it was and had it repaired immediately. It is not losing nearly as much as before the head was replaced, but I will see about getting it pressure tested. Is there a way to do this myself?

Also considering buying some dye to put in the system because I absolutely cant see any leaks. However, will a black light work or do I need a special UV light?