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Posted on Nov 20, 2010
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My heat doesn't work in 1991 lexus 400 - 1991 Lexus LS 400

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  • Master 784 Answers
  • Posted on Nov 20, 2010
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Have the heater coil flushed out to make sure it doesn't clog up. The heater only works if there is coolant flowing through it when the heater turns on. Good luck.

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