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Where is the idle air control valve located in the engine of a 1990 LS400 Lexus?
Wiki User
∙ 15y ago
It is behind the thermostat housing on the nose of the engine block. It is in line from right to left with the oil filler cap. There may be another air valve associated with the steering pump but it is not the "idle" air control valve (IACV).
Wiki User
∙ 15y ago
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