Is there any way of adding anything to clean a radiator? I have a 1984 f150 and the radiator doesn't flow well. I t has buildup on the ends of the tubes restricting flow. Is ther anyway of cleaning this without having to pull the radiator?

 

Look for "Bar's" products. Anything that eats away deposits will eat away some of the metal, too, so don't expect it to last much longer anyway. You should use rainwater or distilled water to fill your radiator, and keep antifreeze in it - it prevents the inside of the block from rusting & clogging the tanks. Many shops have adapters to backflush a radiator with air pressure, which is the best way to remove the sediment. If it's gone, get a lifetime radiator from almost any parts store.