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Home >> Mazda >> 2003 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Controls [Removal & Installation] >> Air Induction Systems >> Upper Intake Manifold >> Removal (B3000)
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Removal (B3000)

  1. Disconnect the negative battery cable.
  2. Disconnect the breather tube, loosen the clamp and position the air outlet tube aside. See Figure.
  3. Remove the bolt and the splash shield. See Figure.
  4. Disconnect the accelerator cable, speed control cable and return spring. See Figure.
  5. Disconnect the Throttle Position (TP) sensor harness connector. See Figure.
  6. Disconnect the Idle Air Control (IAC) valve harness connector. See Fig 1.
  7. Disconnect the 2 vacuum lines. See Fig 2.
  8. Remove nut and put dipstick aside. See Fig 3.
  9. Remove the nut and the upper intake manifold support brace. See Fig 4.
  10. Loosen the bolt and position the 42-pin wiring harness aside. See Fig 5.
  11. Remove the 42-pin harness connector from the bracket and position aside. See Fig 6.
  12. Disconnect the brake booster vacuum hose. See Fig 7.
  13. Remove the Positive Crankcase Ventilation (PCV) valve from the valve cover. See Fig 8.
  14. Remove bolts and upper intake manifold. See Fig 9.
  15. To install, reverse the removal procedure. Clean the gasket sealing surfaces. Tighten the upper intake manifold bolts in sequence. See Fig 10. See TORQUE SPECIFICATIONS .
Fig 1: Locating IAC Valve Harness Connector - B3000
G00252944Courtesy of MAZDA MOTORS CORP.
Fig 2: Locating Vacuum Lines - B3000
G00252945Courtesy of MAZDA MOTORS CORP.
Fig 3: Locating Engine Oil Dipstick Nut - B3000
G00252946Courtesy of MAZDA MOTORS CORP.
Fig 4: Locating Upper Intake Manifold Support Brace - B3000
G00252947Courtesy of MAZDA MOTORS CORP.
Fig 5: Locating 42-Pin Harness Connector - B3000
G00252948Courtesy of MAZDA MOTORS CORP.
Fig 6: Locating 42-Pin Harness Connector Bracket - B3000
G00252949Courtesy of MAZDA MOTORS CORP.
Fig 7: Locating Brake Booster Vacuum Hose - B3000
G00252953Courtesy of MAZDA MOTORS CORP.
Fig 8: Locating PCV Valve - B3000
G00252951Courtesy of MAZDA MOTORS CORP.
Fig 9: Removing Upper Intake Manifold - B3000
G00252952Courtesy of MAZDA MOTORS CORP.
Fig 10: Upper Intake Manifold Bolt Tightening Sequence - B3000
G00143721Courtesy of MAZDA MOTORS CORP.
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