General Motors — Convert the Fuel Regulator for LP Gas Vapor
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Before you start
- Explosive fuel vapors can cause severe injury or death. Do not smoke or permit flames or sparks near fuels or the fuel system.
Procedure
- Remove the fuel regulator cover plug.
- Remove the fuel regulator adjustment screw and spring; save them for possible conversion back to natural gas.
- Replace the fuel regulator cover plug.
- Disconnect the fuel line at the union connector (natural gas configuration, View A).
- Rotate the fuel regulator and fuel line 180° clockwise (View B).
- Rotate the fuel line elbow an additional 180° clockwise (View C).
- Reconnect the fuel line at the union connector.
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.