Chrysler Full-Size Trucks 1997-2000 Repair Guide

Fuel/Water Separator Filter

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REMOVAL & INSTALLATION



  1. Disconnect the negative battery cable(s).
  2.  
  3. Disconnect the Water In Filter (WIF) sensor connector.
  4.  
  5. Remove the separator filter assembly from the filter head with a standard oil filter wrench or loosen the filter canister nut at top, depending on type fitted.
  6.  
  7. Remove the O-ring from the filter mounting bushing, if equipped.
  8.  
  9. Drain the fuel/water separator filter and remove the assembly from the fuel filter.
  10.  

To install:

  1. Install a new O-ring to the WIF assembly and install to the new separator filter.
  2.  
  3. Install a new O-ring to the mounting bushing.
  4.  
  5. Fill the fuel/water separator filter with clean diesel fuel.
  6.  
  7. Apply a light coat of oil to the sealing surface of the separator filter.
  8.  
  9. Install the assembly and tighten it 1 / 2 turn after the seal contacts the filter head, or if a nut is used, tighten it to 30-40 inch lbs. (3-5 Nm).
  10.  
  11. Reconnect the WIF sensor connector.
  12.  
  13. Connect the negative battery cable(s), start the engine and check for leaks.
  14.  



Click image to see an enlarged view

Fig. Fuel filter/Water Separator as fitted to 1999-2000 Models

DRAINING WATER FROM THE SYSTEM



Filtration and separation of water from the fuel is important for trouble free operation and long life of the fuel system. Regular maintenance, including draining moisture from the fuel/water separator filter is essential to keep water out of the fuel pump. To remove the collected water, simply unscrew the drain at the bottom of the WIF assembly located at the bottom of the filter separator, or turn the drain handle to OPEN , depending on type fitted.

IDLE SPEED ADJUSTMENT (1997-98 Models)




WARNING
This procedure applied to 1997-98 Models only. It applies only to low-speed idle. High-speed idle cannot be adjusted.

  1. Start the engine and run until at normal operating temperature.
  2.  
  3. An optical tachometer must be used to read engine speed; a conventional tachometer connected to the coil is useless in this instance.
  4.  
  5. Turn the air conditioning ON if equipped.
  6.  



Click image to see an enlarged view

Fig. Turn the screw shown to adjust the low idle speed

  1. Turn the idle speed screw until the desired idle speed is obtained. The specification for a vehicle equipped with automatic transmission is 750-800 rpm in DRIVE with A/C ON . The specification for a vehicle equipped with manual transmission is 780 rpm in Neutral with A/C ON .
  2.  

 
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