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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 33 (HVAC SYSTEMS - MANUAL)REMOVAL & INSTALLATIONHVAC MODULE ASSEMBLYINSTALLATION
2004 Oldsmobile Bravada AWD

HVAC Module Assembly: Installation

2004 Oldsmobile Bravada AWDSECTION Installation
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install NEW seals to the outer HVAC control assembly. Install the HVAC control assembly to the vehicle. Install the nuts which secure the HVAC control assembly to the dash. Install the evaporator drain elbow. Connect the vacuum hoses to the HVAC module assembly. Connect the electrical connectors to the HVAC module assembly. Install the heater core outlet cover. Install the cover screws to the heater core outlet. Install the cross vehicle beam to the vehicle.
  2. Do Not tighten the bolts at this time. Install the bolts which secure the right cross vehicle beam to the hinge pillar. Install the bolts which secure the left cross vehicle beam to the hinge pillar. Tighten the bolts to specification. See TORQUE SPECIFICATIONS . Install the bolt to the cross vehicle beam. Tighten the bolt to specification. Install the bolts to the upper support brackets of the HVAC module. Tighten the bolts to specification. Install the HVAC module center support bracket. Install the bolts to the center support bracket of the HVAC module. Tighten the bolts to specification.
  3. Install the instrument panel wiring harness on to the cross vehicle beam and secure the retaining clips. Install the BCM bracket and bolts. Tighten the bolts to specification. Install the fuse block to the holder. Install the two screws below the fuse block that hold the main wiring harness connector to the cross vehicle beam. Install the support bracket and bolts for the steering column. Tighten the bolts to specification. Install the brake pedal. Install the passenger side SIR inflator module. Install the right and left side air distribution duct Install the screws to the right and left side air distribution duct. Tighten the screws to specification. See TORQUE SPECIFICATIONS .
  4. Install the I/P trim pad. Connect the inlet and outlet heater hose to the heater core. Reposition the heater core hose clamps in the indicated location. Use Hose Clamp Pliers in order to reposition the heater hose inlet and outlet clamp to the heater core. Install the fuel injector sight shield (3.8L only). Fill the cooling system.
  5. Install new O-rings seals on the accumulator tube. Connect the evaporator tube to the evaporator. Connect the accumulator tube to the evaporator. Install the accumulator tube to evaporator core block fitting bolt. Tighten the screws to specification. Install the air cleaner assembly. Connect the battery negative cable. Evacuate and recharge the A/C system. See RECOVERY, EVACUATION & RECHARGING in GENERAL SERVICING PROCEDURES article in GENERAL SERVICING.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.