Re: Lower half of radiator stays cold while driving
Old radiators in good shape can be saved by removing and back flushing with a hot water pressure washer with degreaser, water pump grease and debris plug the tubes.. you need more heat and chemical than dishwasher tabs and engine temp. I know it’s painful to tear her down but cleaning it correctly will save money. Pulling the cylinder head and cleaning the water jacket finishes the job.
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