Isx15 popping radiator caps

[tree98]

If you are indeed getting too much pressure in your cooling system, it can only be 2 things. One is a dropped liner (most common) the other place it could come from is the air compressor (not likely but not impossible) So first you really need to establish if your cooling system is overpressurized or not. Blowing caps off seems like a red flag to me but I'm not there and don't know the dynamics of your whole situation.