This instruction show you guide on how to use DDDL diagnostic software to do FIS low pressure leak test for GHG17 heavy duty machine.
Preparations:
2023 Detroit Diesel Diagnostic Link DDDL 8.17 8.09 Free Download
J48710 Air Pressure Test Kit Fuel system
W470589039100 Fuel system tool update kit without an MCM cooler
Procedures:
Note:Please review 13 TL-11REV to ensure changes to essential tool J-48710 have been made to improve the accuracy of detecting low pressure fuel system leaks.
Test as follows:
1.With the engine OFF, apply the parking brake, chock the wheels and perform any other applicable safety steps.
2.Remove the fuel tank fill caps.
3.Remove the fuel feed line from the fuel filter module.
WARNING
PRESSURIZED AIR AND FLYING PARTICLES
To avoid injury to eye or face, wear a face shield or goggles when conducting a pressure test.
4.Install J-48710 tool (1) on to the fuel filter module.
5Connect an air supply to J-48710 tool.
6.Pressurize the fuel system to 517 kPa (75 psi) for six minutes.
7.Close the ball valve on J-48710 tool.
8.Wait two minutes.
9.Remove the return line from the fuel filter module and install J-48710 cap tool (1) on the fuel filter module return line fitting.
10.Install the fuel tank fill caps.
11.Ignition ON, engine OFF, connect to the MCM using DDDL 8.15 DiagnosticLink.
12.Click the
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