LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 119 (Engine Control System - 4.2L (Introduction)) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: View Of PCM Assembly
    GM1284769Courtesy of GENERAL MOTORS CORP.
  1. Install the PCM mounting studs (5) to the intake manifold, if removed.

    Tighten:  Tighten the studs to 6 N.m (53 lb in).

  2. Install the PCM (1) onto the studs (5).
  3. Install the PCM retaining bolts (3).

    Tighten:  Tighten the bolts to 8 N.m (71 lb in).

  4. Install the PCM retaining nuts (6).

    Tighten:  Tighten the nuts to 8 N.m (71 lb in).

  5. Install the PCM harness connectors (2) to the PCM body.
  6. Tighten the PCM harness connector retaining bolts (4).

    Tighten:  Tighten the bolts to 8 N.m (71 lb in).

  7. If a new PCM is being installed, the PCM must be programmed. Refer to Service Programming System (SPS) in Programming.
scientia non olet · About LEMON Manuals