Disconnect the negative battery cable. Keep a Class B dry chemical fire extinguisher available. Always relieve the fuel pressure before disconnecting a fuel line. Wrap a shop cloth around a fuel line when disconnecting the line. Always use new O-rings. Do not replace the fuel pipes with fuel hoses. Always use a back-up wrench when opening or closing a fuel line.
- Release the fuel vapor pressure in the fuel tank by removing the fuel tank cap and reinstalling it.
- Cover the fuel line with an absorbent shop cloth and loosen the connection slowly to release the fuel pressure gradually.