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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 251 (Engine Controls - Removal & Installation) >> Fuel Systems (CNG) >> Fuel Tank >> Assembly Procedure

Assembly Procedure

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

If replacing the tank, install the following components:

  1. Install the vent boot. Tighten the vent boot clamp to specification. See TORQUE SPECIFICATIONS .
  2. Install the fuel outlet fitting (1) to the tank valve using a new "O" ring. Lubricate the new "O" ring face seal with petroleum jelly or the equivalent. Tighten the fitting to specification. See TORQUE SPECIFICATIONS .
  3. Install the fuel inlet fitting (3) to the tank valve using a new "O" ring. Lubricate the new "O" ring face seal with petroleum jelly or the equivalent. Tighten the fitting to specification. See TORQUE SPECIFICATIONS .
  4. Install the FTP sensor (2) using a new "O" ring face seal. Lubricate the new "O" ring with petroleum jelly or the equivalent. Tighten the FTP sensor to specification. See TORQUE SPECIFICATIONS .
  5. Install the HPL Pressure Relief Device line fitting (4) in the tank valve. Tighten the fitting to specification. See TORQUE SPECIFICATIONS .
  6. Install the new rubber isolators.
  7. Obtain a new CNG Fuel Only label and a new Bi-fuel Information label.
  8. Record the new tank service expiration date on each label.
  9. Install the new labels.

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