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Home >> Cadillac >> 2006 >> DTS 4.6 9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.6L - Introduction (2 Of 2) >> Repair Instructions >> Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Replacement >> Installation Procedure

Installation Procedure

NOTE:
  • Handle the MAF sensor carefully.
  • Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
  • Do not damage the screen located on the air inlet end of the MAF.
  • Do not touch the sensing elements.
  • Do not allow solvents and lubricants to come in contact with the sensing elements.
  • Use a small amount of a soap based solution in order to aid in the installation.

    Fig 1: MAF/IAT Sensor
    GM1670874Courtesy of GENERAL MOTORS CORP.
  1. Install the MAF/IAT sensor.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the MAF/IAT sensor bolts.

    Tighten:  Tighten the bolts to 4 N.m (35 lb in).

    3. Fig 2: Air Cleaner Outlet Duct
    GM1670799Courtesy of GENERAL MOTORS CORP.
  3. Install the air cleaner outlet duct.
  4. Tighten the air cleaner outlet duct clamp at the MAF/IAT sensor.

    Tighten:  Tighten the clamp to 3 N.m (27 lb in).

    5. Fig 3: Air Cleaner Outlet Duct Clamp
    GM1670790Courtesy of GENERAL MOTORS CORP.
  5. Tighten the air cleaner outlet duct clamp at the throttle body.

    Tighten:  Tighten the clamp to 3 N.m (27 lb in).

    6. Fig 4: MAF/IAT Sensor
    GM1670786Courtesy of GENERAL MOTORS CORP.
  6. Connect the engine harness electrical connector to the MAF/IAT sensor.
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