I might have to flush the heater core. What direction does the coolant flow? Does it flow from exhaust heater > heater core > EGR cooler? Or the other way around, EGR cooler > heater core > exhaust heater?
I was thinking to call you out for the abusive tone, then realized who you're talking to, lol. If the clogging is due to something like Stop-Leak, a 50/50 mix of water/white vinegar is supposed to very quickly dissolve the gunk.
Not sure what is going on. I bought it this way. Hope they didn’t put some “head gasket in a can” In the coolant system. I guess I will find out soon enough.
