GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Jimmy - 4WD 🢒 Body and Accessories 🢒 Body Front End 🢒 Seal Replacement - Plenum to Hood

Removal Procedure

    Object Number: 302994 Size: SH
  1. Remove the cowl plenum screws.
  2. Use a flat-bladed tool in order to carefully break the adhesive bond.
  3. Remove the seal assembly from the cowl plenum flange.
  4. Clean the flange. Use a suitable solvent such as a mixture of 50 percent isopropyl alcohol and 50 percent water or high-flash naptha.
  5. Dry the area thoroughly.

Installation Procedure

    Object Number: 302994 Size: SH
  1. Remove the liner from the adhesive strip.
  2. Position the assembly.
  3. Press the assembly into place.

    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.

  4. Install the cowl plenum seal and the screws.

    5. Tighten
    Tighten the screws to 1.9 N·m (17 lb in).