[REByar]

Frank55a
Yes. I have done this twice. Even let the vinegar sit for a few days. The first time the water coming out of the bottom of the radiator(I took the lower hose off) was dirty and did contain rust particles. But the second time I did it(because I was still having this issue) the water was nearly clean. Have tried store radiator cleaners and as others have said- they did nothing. I was wondering if I drained the system and let it sit for a few days empty, dry out a little then do the vinegar cleaning again if I would get more out. My thought is if the gunk dries out it will loosen a little. Otherwise I am either back to the rodding route or buy a new radiator. I would rather try and save the one I have.
thanks
Randy