Ram Truck 1500, 2500 & 3500 (2006-2008)

Fuel Filter

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Draining Water From The System



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. A drain hose is located at the bottom of drain valve. Place drain pan under drain hose.

    Click image to see an enlarged view

    Fig. Bottom view of fuel filter housing 5.9L-6.7L diesel engines

  4.  
  5. With engine not running, rotate drain valve approximately two revolutions to open it. Leave open until all water and contaminants have been removed and clean fuel exits. Hand tighten drain valve after tightening.
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  7. After draining operation, close and tighten drain valve.
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Fuel Tank Draining



Two different procedures may be used to drain fuel tank: through the fuel fill fitting on tank, or using a diagnostic scan tool to activate the fuel pump relay. Due to a one-way check valve installed into the fuel fill opening fitting at the tank, the tank cannot be drained conventionally at the fill cap.

The quickest draining procedure involves removing the rubber fuel fill hose at the fuel tank.

As an alternative procedure, the electric fuel pump may be activated allowing tank to be drained at fuel rail connection. Refer to diagnostic scan tool for fuel pump activation procedures. Before disconnecting fuel line at fuel rail, release fuel pressure. Refer to the Fuel System Pressure Release Procedure for procedures. Attach end of special test hose tool number 6631 or 6539 at fuel rail disconnection (tool number 6631 is used on 5 / 16 fuel lines while tool number 6539 is used on 3 / 8 fuel lines). Position opposite end of this hose tool to an approved gasoline draining station. Activate fuel pump and drain tank until empty.

If electric fuel pump is not operating, fuel must be drained through fuel fill fitting at tank. Refer to following procedures:

  1. Release fuel system pressure.
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  3. Raise the vehicle
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  5. Thoroughly clean area around fuel fill fitting and rubber fuel fill hose at tank.
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  7. If vehicle is equipped with 4 doors and a 6 foot (short) box, remove left-rear tire/wheel.
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  9. Loosen clamp and disconnect rubber fuel fill hose at tank fitting. Using an approved diesel fuel holding tank, drain fuel tank through this fitting.
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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove left front tire/wheel.
  4.  
  5. Remove left front wheel splash shield.
  6.  
  7. Clean all debris from around filter canister and canister head.
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  9. Disconnect the Water In Fuel (WIF) sensor electrical connector.
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  11. Open the drain valve two complete revolutions. Drain approximately 1 cup of fuel into a waste canister.
    NOTE
    Dispose of fuel according to environmental regulations.

  12.  
  13. Remove drain hose from drain valve.
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  15. Use an oil filter type wrench to loosen filter. Continue removing filter by hand.
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  17. After fuel filter removal, also check and clean secondary filter screen. Press button on quick-connect fitting. Disconnect fitting from fitting. Unscrew the fitting from canister head to expose screen.
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  19. Clean screen and check the condition of O-ring.

    Click image to see an enlarged view

    Fig. Fuel filter housing and related parts 5.9L-6.7L diesel engines

  20.  

To install:

  1. Reverse removal procedure for installation.
  2.  

 
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