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Home >> Isuzu >> 1992 >> Impulse XS, 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.6L 4-CYL - VINS [4,5,6] & 1.8L 4-CYL - VIN [8] >> Removal & Installation >> Upper Intake Manifold >> Removal (1.8L DOHC)

Removal (1.8L DOHC)

  1. Disconnect negative battery cable. Disconnect ground cables from upper intake manifold. Disconnect ventilation hose from intake air duct side of upper intake manifold.
  2. Remove engine harness from throttle valve assembly. Remove air cleaner upper case and air duct. Disconnect accelerator cable from throttle valve.
  3. Disconnect PCV hose and Manifold Absolute Pressure (MAP) sensor vacuum hose. Disconnect brake booster vacuum hose and canister hoses. Remove pressure regulator vacuum hose.
  4. Remove Vacuum Switching Valve (VSV) assembly with vacuum pipe. Disconnect Manifold Air Temperature (MAT) sensor connector. Remove engine harness assembly. Disconnect canister hose from upper intake manifold.
  5. Disconnect TPS connector from throttle valve assembly. Disconnect throttle valve assembly with heating hoses from upper intake manifold. Disconnect upper intake manifold bracket and engine hoist bracket. Remove upper intake manifold from vehicle.
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