I do not know much about 9000's and I am trying to learn, please bear w/me. I looked at a 1990 turbo CD for my mom, and I smelled antifreeze when I turned on the vents. I heard that 9000's are notorius fro the heater cores going bad. Could this be a symptom? How do I check/fix? What else could it be? Ps. sorry for originally posting this topic on the 900 page!