General Motors — Fuel Tank Removal and Replacement - Removal
A General Motors service procedure — check it applies to your exact model before use.
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Before you start
- LPG Propane Gas is flammable. DO NOT vent propane in an enclosed area, or close to service pits, drainage ditches or low lying areas. DO NOT vent propane within 25 feet of any source of ignition, spark, open flame or heat. When venting propane liquid, it will vaporize at a very cold temperature (-44 F). Always wear safety goggles and gloves when handling systems venting gas. Always perform a complete system leak test after completing any service or maintenance.
Procedure
- Be fully aware of the local regulations, NFPA codes and safety requirements for handling propane fuel prior to working on this unit.
- Drain LPI fuel tank and purge of vapor in accordance with service manual safety instructions and warnings. See Fuel Tank Draining & Evacuation Procedure.
- Leave supply valve, and 80% bleeder valve open for safety.
- Carefully loosen the pressurized black and green lines located on the top front portion of the tank. Once the propane has been drained remove both lines.
- Remove black bleed hose from back of bleed valve on fuel neck assembly.
- Remove the blue fill hose from back of the fill valve on the fuel neck assembly.
- Using a wrench and/or socket ratchet loosen and remove all nuts and carriage fasteners attaching the rear bumper to the vehicle.
- Carefully remove rear bumper to prevent damage to the vehicle.
- Remove the rear tow hooks and the tow hook cross member.
Tools required
- Wrench
- Socket ratchet
Source: manual:FuelSystem.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.