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Q: heat wont com on on 1992 Lexus SC400

the heat works when it wanna work...i see that is a common problem...wondering how to fix it and how much??
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Too hard to say from such a generalized symptom. Your engine temperature needs to be checked first. If you verify that is ok, you need to check at the temperature control inside the vehicle.

A good diagnosis is in order, really, before anything else. Best of luck!
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