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Why would your heater core in your 1990 Chevy need to be replaced three times in the past year?
Wiki User
∙ 12y ago
If you're not running sulphuric acid for coolant, there is no reason why a new heater core would wear out so quickly. If the parts you're using are not new, there is no way of knowing how long they will last.
if at any time you have used stop leak the radiator could become clogged at the bottom vanes the pressure and temp increases which could cause the core to fail. also if the thermostat fails to open all the way..
also if the person installing it forgets to put the spacer pad in between the the heater core lines and they get constantly vibrated together rubbing a hole in one or the other. symptom will be a wet passenger floor board.
Wiki User
∙ 12y ago
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