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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L (L65) (Introduction) >> Repair Instructions >> Fuel Injection Line(s) Replacement >> Removal Procedure

Removal Procedure

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
IMPORTANT: Clean all the line fittings that will be loosened or removed.
  1. Remove the negative battery cables.
  2. Remove the intake manifold. Refer to Intake Manifold Removal- Upper and Intake Manifold Removal - Lower in Engine Mechanical - 6.5L.
    IMPORTANT: Before any further service work is to be done, cover the intake ports with the J 39664  . See Special Tools .
  3. Remove the injection line clips at the loom brackets.
  4. Remove the injection lines at the nozzles.
    • Cap the lines and the nozzles immediately.
    • Do not bend the injection lines.
  5. Remove the injection lines at the pump. Refer to Fuel System Description .
    • Cap the lines and the pump fittings immediately.
    • Tag the lines for installation.
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