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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 231 (ENGINE CONTROLS - REMOVAL & INSTALLATION)AIR INDUCTION SYSTEMSAIR CLEANER INTAKE DUCTREMOVAL & INSTALLATION
1999 GMC Forward Control 5.7 R, Automatic

Removal & Installation

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal & Installation
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Loosen the 2 intake air duct clamps from the Mass Airflow (MAF) sensor and the throttle body. See Fig 1 . Disconnect the vent tube from the air cleaner intake duct. Disconnect the MAF sensor electrical connector.
  2. Unlatch the air cleaner cover clips and remove the air cleaner intake duct and air cleaner cover. Separate the air cleaner intake duct from the MAF sensor and throttle body Remove air cleaner intake duct. To install, reverse removal procedure. Tighten the air cleaner intake duct clamps to specification. See TORQUE SPECIFICATIONS  .
Fig 1: Locating IAT & MAF Sensors
G00121117Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.