Wanted to do a full coolant flush (going from G12 to G13 and wanted to flush to be safe), I disconnected the lower radiator hose and put a bucket there for drainage, turned the car on and let it temp. I started pouring distilled water in the reservoir, car was on for about 10-20 minutes. I was constantly looking at the dash to make sure it wasn’t overheating.
As I’m finishing up all of the liquid coming out of the hose is water, no coolant left so I stop putting water in and go in the car to watch for it to overheat and plan to turn it off as soon as this happens. I notice it’s already flashing and says stop on the dash so I turn the car off right away, the rest of the water drains out.
I connect the hose and make sure everything is sealed, fill the reservoir with new coolant, go to start it and it just clicks and makes a cracking type sound like an electrical shortage or something.
Did I totally f up my car? By the looks of things it seems like it’s toast, maybe needs a new pump but most likely toast right?