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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Mechanical - 5.3L (L83) Or 6.2L (L86) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Exhaust Manifold Installation - Right Side

Exhaust Manifold Installation - Right Side

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Fig 1: Exhaust Manifold - Right Side (With Tightening Sequence)
GM2892101Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Exhaust Manifold Gasket
Procedure 
Install a NEW gasket.
2 Exhaust Manifold
3 Exhaust Manifold Bolt
CAUTION:

Refer to Fastener Caution .

Procedure

  1. Discard bolt. DO NOT reuse.
  2. Tighten the exhaust manifold bolts in the sequence shown.

Tighten in sequence
  1. Tighten the bolts to 27 N.m (20 lb ft).
  2. Loosen bolts to 180 degrees.
  3. Tighten bolts to 23 N.m (17 lb ft)
4 Exhaust Manifold Heat Shield
5 Heat Shield Bolt
Tighten 
10 N.m (89 lb in)
6 Spark Plug Wires

Procedure

  1. Inspect the inside of the spark plug wire boot for a thin, even coat of grease. If there is no grease present or additional grease is necessary, complete the following procedure:
  2. NOTE:
    • Only apply dielectric grease to the spark plug side of the spark plug wire boot.
    • When installing the wires, one audible click should be heard at the spark plug end and two audible clicks should be heard at the ignition coil end.
  3. Apply a thin coating of dielectric grease evenly to the inside of the spark plug wire boot, up to a depth of 15 mm from the end of the boot. Adhesives, Fluids, Lubricants, and Sealers
  4. Remove any excess grease from around the end of the boot, and ensure there is not an excessive amount within the boot.