Question about 1994 Lexus LS 400

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No heat. When i checked under the hood,found heater control valve leaking. removed cable connecting the valve and heater works. Do i have to change both heater valve as well as the cable.How do i check if cable is working.Is cable replacement difficult.Please help & guide.

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  • Lexus Master
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Most of the time its just the valve . to check cable you need to have someone operate controls from hot to cold while you whatch to see if cable is moving when it is disconnceted

Posted on May 21, 2009

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Why would my fan blow but not blow hot air?


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There may be an external heater control valve next to the firewall that is either vacuum or cable controlled.
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