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Home >> Lexus >> 1998 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Air Induction System >> Acoustic Control Induction System (ACIS) >> Removal (GS300)

Removal (GS300)

  1. Remove A/T oil dipstick and guide. Disconnect negative battery cable. Disconnect noise filter connector. See Figure. Disconnect engine wire clamp from bracket. Remove bolt, bracket and noise filter. Remove bolts, nuts and intake air connector to air intake chamber.
  2. Disconnect PS, No. 2 vacuum pipe, and ACIS actuator hoses. See Figure. Disconnect accelerator cable. Remove bolt and accelerator cable clamp. Disconnect EVAP hose. Remove bolt, clamp, air intake chamber and gaskets.
  3. Remove nuts and vacuum tank from intake manifold. Disconnect ACIS vacuum switching valve connector. Disconnect vacuum hoses from air intake chamber, vacuum tank and vacuum switching valve. Remove vacuum switching valve from vacuum tank.
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