2005 Pontiac Aztek Base, FWDFACTORY OEM SERVICE PROCEDURE

Removal Procedure

    Fig 1: Identifying Air Intake Duct
    GM69062Courtesy of GENERAL MOTORS CORP.
  1. Drain coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
  2. Disconnect the intake air temperature (IAT) sensor electrical connector.
  3. Disconnect the breather tube from the air intake tube.
  4. Remove the air intake tube.
    5. Fig 2: View Of IAC Valve Electrical Connector
    GM69056Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the idle air control (IAC) valve electrical connector.
    6. Fig 3: View Of TP Sensor & Electrical Connector
    GM69065Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the throttle position (TP) sensor electrical connector.
    7. Fig 4: View Of Accelerator Cable Bracket
    GM12689Courtesy of GENERAL MOTORS CORP.
  7. Remove the accelerator control cable bracket. Refer to Accelerator Controls Cable Bracket Replacement .
    8. Fig 5: Throttle Body Assembly
    GM12688Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the throttle body coolant bypass hoses.
  9. Disconnect the heater pipe nut at the throttle body.
  10. Remove the nuts and bolts holding the throttle body to the intake manifold.
  11. Remove the throttle body assembly.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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