My 88 Sub Is Losing About A Gallon Of Coolent Evey 100 Miles Or So And I Can Not Finde The Leak. I Really Hope Its Not A Blown Head Gasket. I Have Checked Every Thing. When The Truck Is In My Drive Way There Are No Puddels Under It , Not One Drop. All The Hoses Are In Good Shape And The Radiator Is Only A Few Months Old. I Am Running A Catch Bottle And Have Replaced The Radiator Cap And Thermostat. I Can Smell Coolant At Stop Lights But Like I Said,no Leaks. This Is Driving Me Crazy

My 88 Sub Is Losing About A Gallon Of Coolent Evey 100 Miles Or So And I Can Not Finde The Leak. I Really Hope Its Not A Blown Head Gasket. I Have Checked Every Thing. When The Truck Is In My Drive Way There Are No Puddels Under It , Not One Drop. All The Hoses Are In Good Shape And The Radiator Is Only A Few Months Old. I Am Running A Catch Bottle And Have Replaced The Radiator Cap And Thermostat. I Can Smell Coolant At Stop Lights But Like I Said,no Leaks. This Is Driving Me Crazy

Check the bottom of the engine under the plugs drivers side. You will need to remove the wheel lift rubber engine cover there should be a circle with an aluminum cap in it there are like 3-4 on the engine depending on make and model. This is the freeze plug sometimes they leak. I know they put one inbetween the engine and trans sometimes and you cant see it lets hope its not that one leaking. This is just a guess it happened to me and thats what it was. No promise but give it a try.