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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 486 (REAR DRIVE AXLE)REPAIR INSTRUCTIONSVENT HOSE REPLACEMENTREMOVAL PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Removal Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The axle vent assembly is on the right side of the axle carrier.

  1. Raise and support the vehicle. Refer to JACKING AND LIFTING in General Information.
  2. Remove the vent clamp bolt.
    Fig 1: Removing Vent Clamp Bolt
    G01468122Courtesy of GENERAL MOTORS CORP.
  3. Remove the hose from the axle vent tube.
    Fig 2: Removing Hose From Axle Vent Tube
    G01468123Courtesy of GENERAL MOTORS CORP.
  4. Remove the hose from the frame.
  5. Remove the vent assembly from the hose.
  6. Remove the vent hanger clip from the vent hose.
  7. Remove the hose clamp from the vent hose.
    Fig 3: Removing Hose Clamp From Vent Hose
    G01468124Courtesy 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.