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Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 (Engine Control System - 4.8L, 5.3L, & 6.0L - Introduction) >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.
IMPORTANT: The engine oil may be contaminated with fuel if the fuel injectors are leaking.
    Fig 1: Exploded View Of Fuel Rails & Injector Components
    GM350543Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel rail. Refer to Fuel Rail Assembly Replacement .
  2. Remove and discard the fuel injector retainer clip (19).
  3. Remove the fuel injector (17).
    4. Fig 2: View Of Fuel Injector, Clip & O-Rings
    GM351185Courtesy of GENERAL MOTORS CORP.
  4. Remove and discard the fuel injector retainer clip (1).
  5. Remove and discard the fuel injector O-ring seals (2, 4).
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