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How do you knoW if heater coil is not working IN A 1996 S-10 2.2?
Wiki User
∙ 13y ago
With the engine warmed up and running, open the hood and feel both heater hoses with your hand. They should both be hot. If one is hot and the other is cold or warm, the heater core is plugged. If they are both cold or warm the thermostat is stuck open or you are low on coolant.
Wiki User
∙ 13y ago
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