Removal (Cab & Chassis)
WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Tank Removal Tool (J-45529) and Combustible Gas Detector (J-45878) are required for this procedure. See Figure
and Figure
.
- If the tank is being removed in order to replace the High Pressure Lock-Off (HPL) solenoid or for internal tank cleaning, perform the High Pressure Lock-Off (HPL) Solenoid Replacement instead of this procedure. See HIGH PRESSURE LOCK-OFF SOLENOID under SOLENOIDS. Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . If the tank is to be discarded or shipped it must be vented. Venting will damage the HPL solenoid. See FUEL TANK VENTING PROCEDURE under FUEL SYSTEM PRESSURE RELEASE.
- Disconnect the negative battery cable(s). Remove the truck body as required on ZW9 equipped vehicles in order to gain access to the CNG fuel tank.
- Disconnect the High Pressure Lock-Off (HPL) solenoid connectors. Disconnect the Fuel Tank Pressure (FTP) sensor connector. Disconnect the HPL fuel lines.
- Remove the tank strap retaining nuts. Remove the clips and pins from the tank strap mounting bracket. Remove the tank straps. See Figure .
- Place the Tank Removal Tool around the tank. Connect the Tank Removal Tool to a suitable lifting device and remove the tank from the vehicle.