1997 Dodge Ram 1500 Q&A
1997 Dodge Ram 1500 Question: 97 Ram 1500 5.9. over heats when radiator cap is tight. If on loosely doesn't.
97 Ram 1500 5.9 overheats and boils over very quickly. If I leave the radiator cap on loosely doesn't seem to overheat. With cap off, raising rpm's level in radiator drops down for couple of seconds, then over flows. Have replaced fan clutch, thermostat, and cleaned radiator. Have water/oil foam on inside of oil cap but no foam on oil dipstick. No foam in radiator but am putting so much water in it might not see any. - joeitall
Are you putting water in it , or the proper mix of coolant? .....After sitting overnight, have radiator full and cap on tight, start it and hold the upper rad hose in a safe place and feel for air bubbles and a rapid increase in pressure in the hose. If you 'feel' bubbling or the hose can't be easily squeezed (like just before starting) then you've probably got head gasket problems(in my opinion). - ziptie12