1992 Ford Truck Ranger 2WD 2.3L FI 4cyl I am only the second owner. I bought it from the original owner who still had the window sticker, and complete maintenance receipts and log. When I got it the odometer had 128,000 original miles. No rebuild or any other major repairs. Since buying the only thing I've replaced is the starter. It sat unused from June 2 of this year until about 2 weeks ago. The coolant leaks out pretty quickly and in reading about possible sources of the leak I've come across something called the "water jacket." What is the water jacket and where is it? Is it called something else? I searched for this on autozone.com and found no results. I've started this thread asking about the water jacket, but it's not about that; it's about the coolant leak and I'll ask more questions concerning this issue and we'll work through it together...I hope. And I HOPE to fix this issue quickly and get my baby back to par!!! Thanks folks!