GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 General Information 🢒 General Information 🢒 Air Cleaner Outlet Duct Replacement

Removal Procedure

    Object Number: 360851 Size: SH
  1. Loosen the clamp at the air cleaner outlet duct at the MAF/IAT sensor assembly.
  2. Remove the duct from the MAF/IAT sensor assembly.

    3. Object Number: 489179 Size: SH
  3. Remove the air cleaner outlet duct retaining wingnut.

    4. Object Number: 489176 Size: SH
  4. Remove the air cleaner outlet duct and resonator from the throttle body by pivoting the air cleaner outlet duct and resonator upward until the hinge clip releases from the lip on the throttle body.

    5. Object Number: 489174 Size: SH
  5. Remove air cleaner outlet duct.

Installation Procedure

    Object Number: 489174 Size: SH
  1. Install the air cleaner outlet duct.

    2. Object Number: 489176 Size: SH
  2. Align the hinge clip with the lip on the throttle body. Install air cleaner outlet duct to the throttle body by pivoting the air cleaner outlet tube and resonator downward until the mounting stud is through the hole in the air cleaner outlet duct.

    3. Object Number: 489179 Size: SH
  3. Install the air cleaner outlet duct retaining wingnut.

    4. Object Number: 360851 Size: SH
  4. Install the air cleaner outlet duct to the MAF/IAT sensor assembly.