Quote:
Originally Posted by dredgeguy
...talk about pucker factor!! This is not for the faint of heart...the heater core was shot for sure.
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Pucker factor doesn't begin to describe changing a heater core in a C4 ZR-1; worst job ever. I'd sell the car before doing in again. Not sure why it would fail in a low mileage car in the first place. Car was started regularly, stored in a heater/AC garage, and had the coolant changed regularly. Only explanation I can come up with is galvanic corrosion caused by an electrochemical process where one metal corrodes preferentially to another (dissimilar metal) resulting from both being in electrical contact with an electrolyte ?
