Seems like the 'simple test' for a clogged radiator is that you remove the lower hose from the block and sort of rotate hose until it points 'up'. Fill the radiator with water with the bottom hose blocked. With radiator cap removed the water in radiator should rush out, almost like it is under pressure, even spurt up about 8" in height, when you remove the rag you have stuffed in the end of the lower hose. If it does not, some of the radiator tubes or fin area is blocked from rust, hard water scale, or other crud. Obviously this is not a high tech test, believe it may be in Motors manual or some Mopar shop manuals. ANd it do not tell exactly where in the radiator the blockage is but it does tell U it are partly blocked. Now you remove radiator and take it to shop for the 'real' test and hope it can be salvaged. L. |