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TSB 14-02-00

Crack in Diesel Fuel Filter Housing Caused By An Improper Servicing Procedure

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Date: April 14, 2000

Models: 2000-2001 (BR/BE) Ram Truck

NOTE: This Bulletin applies to vehicles equipped with a 5.9L - 24V diesel engine built before engine serial number 56686747 with a date of manufacture of February 09, 2000. This information is available on the engine data plate, which is located on the left side of the engine, affixed to the gear housing.

Discussion:
Quality analysis of returned fuel filter housing covers has determined that a number of plastic covers are being replaced due to cracks. Further analysis has revealed that the cracks may be caused by improper cover removal procedures.

NOTE: DO NOT USE THE SQUARE OPENING to remove or install the cover (Figure 1). The fuel filter cover may crack.

NOTE: To remove or install the fuel filter cover correctly, only use the 1 1/8" hex head. USE OF A SIX POINT SOCKET IS PREFERRED> Do not use an adjustable-life wrench on the 1 1/8" hex.

The removal of the fuel filter cover normally requires a higher effort than its installation. This may be due to the O-ring used to seal the filter cover to the fuel filter housing. The sealing O-ring is designed to swell in the presence of fuel, so that a better seal may be obtained between the cover and the housing.

NOTE:   The O-ring used to seal the fuel filter cover to its housing can only be used one time.

A new O-ring is packaged with each replacement fuel filter or with a replacement cover.

A new fuel filter cover has been redesigned to prevent the use of the square opening for servicing purposes.

CAUTION:    The maximum installation torque for both style fuel filter housing covers is 25 ft-lbs.

Policy:    Information only  


Thanks to Bob Bergevin for supplying this TSB information

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This page was edited on: May 3, 2004