Question about 1992 Lexus Es 300

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1992 es 300 lexus heater is blowing cold

Could a heater control valve cause the heater to blow cold air

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. Yes it could. some are vacuum powered, cable powered (mechanically) or electric powered. If the valve does not open. The hot water will not get to the heater core. It could also be the thermostat not opening.

Posted on Jan 20, 2009

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Jun 16, 2009 | 1999 Lexus RX 300

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