We easily swap out our 1991 Bronco's heater core and say goodbye to antifreeze odor and leakage. THE SWEET SMELL OF ANTIFREEZE WHEN THE heater was turned on, along with tiny puddles of coolant on the passenger-side floor mat, were obvious signs there was an issue with the heater core in our '91 Ford Bronco. After several months of worrying the little drips would turn into something more serious and ruin the new carpet, we finally decided it was time to address the issue.
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