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1999 Cadillac DeVille Service and Repair Fuel Filter
TOOLS REQUIRED J 34730-1A Fuel Pressure Gauge REMOVAL PROCEDURE NOTE: Before attempting any On-Vehicle Service, place a dry chemical (Class B) fire extinguisher near work area. 1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure. 2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle. 3. Remove the in-line fuel filter bracket. 4. Grasp the in-fuel filter and one fuel pipe fitting. 5. Twist quick-connect fitting 1/4 turn in each direction to loosen any dirt within fitting. 6. Repeat for other fuel pipe fitting. CAUTION: Wear safety glasses when using compressed air in order to prevent eye injury. 1999 Cadillac DeVille V8-4.6L VIN Y 7. Blow out dirt-from quick-connect fittings at both ends of in-line fuel filter, using compressed air. 8. Squeeze plastic tabs of male end connector. 9. Pull connection apart. 10. Repeat for the other fitting. 11. Remove the in-line filter. INSTALLATION PROCEDURE CAUTION: To reduce the risk of fire and personal injury, before installing a new filter, always apply a few drops of clean engine oil to both pipe ends of the filter. This will ensure proper re-connection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper re-connection it not lubricated).
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