Well, life is grand. I started up my blazer today, and coolent came out the driver side exhaust. I took out the spark plugs one by one to see if I could get some to come out, and it turns out to be #3 cylinder. This is a new GM 350 crate engine with a 3/50,000 mile waranty. The problem is I don't know if they will cover the waranty due to me replacing the spedometer becasue the old one was missing the needel. It kept mileage just fine, just could tell how speed you were going. Just in case I would like to get some advise to what it may cost to replace it. If you guys have any ideas please let me know.