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Home >> GMC >> 2003 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 520 (Engine Mechanical (Repair Instructions -- 3 Of 3) -- 4.8L, 5.3L & 6.0L) >> Repair Instructions (Off-Vehicle - Part 3) >> Coolant Air Bleed Pipe Installation

Coolant Air Bleed Pipe Installation

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    IMPORTANT:
    • Install the pipe gaskets properly onto the pipe and covers.
    • Position the gasket O-ring seal onto the nipple portion of the pipe.
  1. Install the gaskets onto the engine coolant air bleed pipe and covers.
    2. Fig 1: View Of Air Bleed Pipe Sealing Gasket
    GM64262Courtesy of GENERAL MOTORS CORP.
  2. Install the pipe (307) and gaskets (308) onto the cylinder heads.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the pipe bolts (309).

    Tighten:  Tighten the pipe bolts to 12 N.m (106 lb in).

    4. Fig 2: View Of Air Bleed Pipe, Bolts & Gasket
    GM1277123Courtesy of GENERAL MOTORS CORP.
  4. Install the covers (313), gaskets (308), and bolts (312) onto the rear of the engine.

    Tighten:  Tighten the cover bolts to 12 N.m (106 lb in).

    5. Fig 3: View Of Engine Coolant Air Bleed Cover, Gasket & Bolts
    GM1272806Courtesy of GENERAL MOTORS CORP.
  5. Install the hose (311) and clamps (310) onto the pipe (307).
    6. Fig 4: View Of Engine Coolant Air Bleed Pipe, Hose & Clamps
    GM1277104Courtesy of GENERAL MOTORS CORP.
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