GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Engine 🢒 Engine Controls and Fuel - 4.4L 🢒 Evaporative Emission Canister Filter Replacement

Removal Procedure

    Object Number: 801490 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Using a 90 degree pick, disengage the lower filter cover clips.
  3. Insert a flat-bladed tool between the filter cover and canister, and push up to disengage the upper clips.
  4. Remove and discard the evaporative emission (EVAP) canister filter cover and seal.
  5. Remove and discard the EVAP canister filter.
  6. Clean the inside of the EVAP canister filter housing with a clean shop towel.

Installation Procedure

    Object Number: 801490 Size: SH
  1. Insert a NEW EVAP canister filter into the EVAP canister.

    2. Important: Ensure the NEW seal is properly seated into the NEW cover.

  2. Install a NEW EVAP canister filter cover seal to the NEW EVAP canister cover.
  3. Snap the EVAP canister filter cover onto the EVAP canister.
  4. Lower the vehicle.