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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 91 (ENGINE CONTROLS - REMOVAL & INSTALLATION, OVERHAUL)AIR INDUCTION SYSTEMSAIR CLEANER ASSEMBLYREMOVAL PROCEDURE (3.8L)
1999 GMC Forward Control 5.7 R, Automatic

Removal Procedure (3.8L)

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure (3.8L)
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix, 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2002 Buick Regal, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner intake duct. Refer to AIR CLEANER INTAKE DUCT .
  2. Remove the left inner fender brace (5).
  3. Remove the 2 screws (6) that are holding the air cleaner element housing to the powertrain control module (PCM) housing.
    Fig 1: Air Cleaner Assembly Components
    G01766014Courtesy of GENERAL MOTORS CORP.
  4. Remove the air cleaner housing cover (1) from the air cleaner housing.
    5. Fig 2: PCM, Air Cleaner Housing & Cover
    G01766015Courtesy of GENERAL MOTORS CORP.
  5. Without disconnecting the PCM connectors, remove the PCM (4) from the air cleaner housing (3).
  6. Remove the air cleaner assembly by pulling the housing away from the rubber grommets in the engine compartment.
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.