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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 94 (ENGINE CONTROLS REMOVAL & INSTALLATION)FUEL SYSTEMS (GASOLINE ENGINES)FUEL TANK DRAINING
1999 GMC Forward Control 5.7 R, Automatic

Fuel Tank Draining

1999 GMC Forward Control 5.7 R, AutomaticSECTION Fuel Tank Draining
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Never drain or store fuel in an open container. Always use an approved fuel storage container in order to reduce the chance of fire or explosion. Place a dry chemical (Class B) fire extinguisher nearby before performing any on-vehicle service procedures. Failure to follow these precautions may result in personal injury.

Remove the fuel filler cap. Install Fuel Flapper Door Holder (J-42960-2) into the fuel fill pipe in order to hold the fill door open. Insert Fuel Drain Hose (J-42960-1) into the fuel tank until the hose reaches the bottom of the fuel tank. Use an air operated pump device in order to drain as much fuel through the fuel fill pipe as possible.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.