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TSB 14-01-98 REV.A

High pressure fuel line service.

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Date: July 17, 1998

This TSB supersedes TSB 14-01-98, which should be removed from the files, and includes a new part number for a fuel injector connector tube that can be reused.

Models: 1998 BR/BE Ram Truck

Note: This information applies to the 5.9L Cummins electronically injected 24 valve diesel built prior to engine serial number (ESN) 56462592.

Discussion:

Design revisions have been made to the injector connector tube and the new design be re-torqued many times without compromising the seal between it and the high pressure fuel line (figure 1).  The connector tube carries the CC part number 05013856AA as well as the Cummins part number 3944833 which is also stamped on the connector tube.  "O" ring part number 05011885AA must be replaced when upgrading from "old" style to "new "style connector tubes.

Torque for this connection has changed to 28 ft.lbs (38 Nm).  Do not damage or deform the connector tube with the wrong torque value.

If the injector or connector tube is damaged/deformed, a high pressure leak can occur inside the cylinder head, resulting in engine miss and/or low power.

(illustration attached to TSB)

Policy: Information only


Thanks to Bob Bergevin for providing this TSB information

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This page was edited on: May 3, 2004