GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1815922  Size: SH
  1. Lubricate the lower injector O-rings with mineral oil GM P/N 9981704.
  2. Install the fuel injector rail.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the fuel injector rail bolts and tighten to 10 N·m (89 lb in).