SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 631 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSCOOLANT AIR BLEED PIPE ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Installation Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the coolant air bleed hose (2) onto the pipe (1).
    Fig 1: Installing Coolant Air Bleed Hose Onto Pipe
    G01971779Courtesy of GENERAL MOTORS CORP.

    Important:  Install the gaskets properly onto the pipe and covers. Position the O-ring seal onto the nipple portion of the pipe.

  2. Install the gaskets onto the coolant air bleed pipe and covers, if required.
    Fig 2: Installing Gaskets Onto Coolant Air Bleed Pipe & Cover
    G01971780Courtesy of GENERAL MOTORS CORP.
  3. Install the coolant air bleed pipe covers (2) with gaskets (3), if required.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the coolant air bleed pipe cover bolts (1).

    Tighten 

    Tighten the coolant air bleed pipe cover bolts to 12 N.m (106 lb in).

    Fig 3: Coolant Air Bleed Pipe Covers
    G01971781Courtesy of GENERAL MOTORS CORP.
  5. Install the coolant air bleed pipe (2) with gaskets (3).
  6. Install the coolant air bleed pipe studs (1).

    Tighten 

    Tighten the coolant air bleed studs to 12 N.m (106 lb in).

  7. Install the coolant air bleed hose to the throttle body, if required.
  8. Install the intake manifold, if required. Refer to INTAKE MANIFOLD REPLACEMENT in Engine Mechanical - 5.7 L.
    Fig 4: Coolant Air Bleed Pipe
    G01971782Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.