GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.2L 🢒 Timing Chain and Sprocket Installation

    Object Number: 637618 Size: SH
  1. Install a new camshaft cover seal.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the camshaft cover and bolts. Tighten the camshaft cover bolts to 10 N·m (89 lb in).

    3. Object Number: 637619 Size: SH
  3. Install new ignition control module seals.
  4. Install the ignition control modules and bolts. Tighten the ignition control module bolts to 10 N·m (89 lb in).