GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 55489  Size: SH
  1. Remove the upper intake manifold cover.

  2. Object Number: 55498  Size: SH
  3. Open the air bleed valve on top of the fuel manager/filter to release any pressure in the fuel supply system.

  4. Object Number: 55513  Size: SH
  5. Remove the mounting bolts that connect the fuel manager/filter to the intake manifold.

  6. Object Number: 55514  Size: SH
  7. Remove the wiring harnesses and fuel hoses.
  8. Remove the fuel manager/filter by lifting straight up.

  9. Object Number: 55494  Size: SH
  10. Remove the fuel heater threaded cap nut by using hand pressure or a strap wrench.
  11. Remove the fuel heater from the filter housing.
  12. Clean the fuel heater to housing sealing surfaces.

Installation Procedure


    Object Number: 55494  Size: SH
  1. Install the cap seal into filter housing.

  2. Object Number: 73422  Size: SH
  3. Install the fuel heater.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the threaded cap nut.
  6. Tighten
    Tighten the cap nut securely by hand.


    Object Number: 55514  Size: SH
  7. Install the fuel manager/filter (Refer to Fuel Manager/Filter Replacement .

  8. Object Number: 55513  Size: SH
  9. Install the mounting bolts that connect the fuel manager/filter to the intake manifold.
  10. Tighten
    Tighten the mounting bolts to 25 N·m (18 lb ft)


    Object Number: 55498  Size: SH
  11. Open the air bleed valve on top of the fuel manager/filter to bleed air from fuel supply system (Refer to Fuel Feed and Fuel Return Pipe Purge Procedure .

  12. Object Number: 55489  Size: SH
  13. Install the upper intake manifold cover.