So I bought a 93 Ty a couple years ago, 1 owner and 87k miles and about 95% org. When I got it the fuel pump was junk from sitting. I replaced it with an AC Delco one and flushed the entire system. After checking fluids the intercooler tank was empty and I filled it, now it smokes white. Any ideas? Cracked heat exchanger? Sorry for the noob question I am newish to the Sy/TY world.