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Home >> Cadillac >> 2010 >> DTS 4.6 9 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System & Fuel System - 4.6L - Repair Instructions - >> Repair Instructions >> Fuel Tank Draining
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Fuel Tank Draining

Special Tools 

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.
WARNING: 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.
CAUTION: Drain the fuel tank with a hose which has a 13 mm (0.5 in) or smaller diameter in order to prevent the drain hose from getting stuck inside the fuel tank filler neck pipe check valve. Damage to the check valve may result.
    Fig 1: Identifying Fuel Tank Filler Pipe Cap
    GM153705Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel fill cap (1)
  2. Fig 2: Draining Fuel Tank
    GM387061Courtesy of GENERAL MOTORS CORP.
  3. Install the J 42960-2  into the fuel fill pipe in order to hold the door open. See Special Tools .
  4. NOTE: Lubricate the fuel drain hose with J 36850  or equivalent to aid in hose insertion and removal. See Special Tools . Do not use an unapproved lubricant.
  5. Insert the J 45004  into the fuel tank until the hose reaches the bottom of the fuel tank. See Special Tools .
  6. Use an air operated pump device in order to drain the fuel into an approved gasoline container.
  7. Simultaneously twist and pull in order to remove the J 45004  from the fuel tank. See Special Tools .