18SP747Rev2 – Detroit™ Fuel Injector Cleaning Machine
KIT DESCRIPTION
The Fuel Injector Cleaning Machine (FICM) is used to clean deposits from fuel injectors and test fuel injector
performance. The FICM uses Detroit™ Injector Cleaning Fluid to clean fuel injectors.
KIT CONTENTS
The FICM is can be ordered using tool number DDE DKI001E21003. The table below list the serviceable
parts within the FICM. Detroit™ Injector Cleaning Fluid can be ordered using part number NDX
NQ301009FLD.
Part Number
DDE DKI001E21003
DDE DKI001E21003-1
DDE DKI001E21003-2
DDE DKI001E21003-3
DDE DKI001E21003-4
DDE DSN001E21003-2
DDE DKI001E21003-7
DDE DSN001E21003-1
DDE DKI001E21003-8
DDE DKI001E21003-9
DDE DKI001E21003-10
DDE DKI001E21003-11
DDE DKI001E21003-12
DDE DKI001E21003-13
DDE DKI001E21003-14
DDE DKI001E21003-15
DDE DKI001E21003-16
DDE DKI001E21003-17
DDE DKI001E21003-18
DDE DKI001E21003-19
DDE DKI001E21003-20
DDE DKI001E21003-21
DDE DKI001E21003-22
DDE DKI001E21003-23
DDE DKI001E21003-24
DDE DKI001E21003-25
DDE DKI001E21003-26
DDE DKI001E21003-27

Quantity
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Description
Fuel Injector Cleaning Machine
Fluid Filter
Pump Assembly
Control/Switch Box Assembly
Pressure Gauge
Fuel Return Fitting (Gen5)
Fuel Return Fitting (GHG17, GHG14, EPA10)
Fuel Return Fitting (EPA07)
Banjo Fitting Adapter
Injector Harness
Fresh Fluid Draw Tube
Waste Tank Cap
1/8 " Compucheck Socket Fitting
1/8 " Compucheck Socket Coupler
3/8" Quick Disconnect Gold Plug Fitting
3/8" Quick Disconnect Gold Socket Coupler
3/8" Quick Disconnect Red Plug Coupler
3/8" Quick Disconnect Red Socket Coupler
1/4" Hydraulic Plug Fitting
1/4" Hydraulic Socket Coupler
9" X 5" Magnetic Tray
96" Pressure Line with Couplers
96" Return Line with Couplers
11" Line From Fresh Tank To Pump
13" Line From Pump To Filter
28" Line From Manifold To Waste Tank
28" Line From Filter To Manifold
Fuel Rail Supply Adaptor

Table1

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REQUIRED TOOLS AND MATERIALS
Detroit™ Injector Cleaning Fluid Ordering Information
Part Description
Part Number
Detroit™ Injector Cleaning Fluid, 5 Gallons
Table 2

NDX NQ301009FLD

Quantity
1

Note: Dispose the used injector cleaning fluid in an environmentally responsible manner according to state
and/or federal recommendations.

Tool Number

Service Tools Used in the Procedure
Tool Name

DDE DKI001E21003

Fuel Injector Cleaning Machine

DAVCO FXP95,
ESOC 250E or 250EXL

Fuel Primer

Tool Graphic

Table 3
Note: After cleaning fuel injectors, injector cleaning fluid residue may cause some exhaust smoke during
initial operation.
FICM SERVICE PROCEDURES
Updated FICM replace the two high pressure fuel line fittings (DKI001E21003-5 and DKI001E21003-6) with
fuel rail fittings DKI001E21003-27 and DKI001E21003-28. If the FICM was updated or came with updated
fittings, follow the procedures for use on FICM with Fuel Rail Fittings. If the FICM that was not updated, follow
the procedures for use on FICM with High Pressure Fuel Line Fittings.
This document contains the following service procedures:
 Testing and Cleaning Gen 5 Engine Fuel Injectors Using Updated Fuel Rail Fittings
 Testing and Cleaning Gen 5 Engine Fuel Injectors Using High Pressure Fuel Line Fittings
 Testing and Cleaning GHG17/GHG14/EPA10/EPA07 Engine Fuel Injectors Using Updated Fuel Rail
Fittings
 Testing and Cleaning GHG17/GHG14/EPA10/EPA07 Engine Fuel Injectors Using High Pressure Fuel
Line Fittings
 Priming the Fuel Injector Cleaning Machine.

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CONTACT INFORMATION
Please email [email protected] if you have any questions.

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Gen 5 Engines – Fuel Rail Fittings

Testing and Cleaning Gen 5 Engine Fuel Injectors Using Updated Fuel Rail
Fittings
FICM Fittings Used in the Procedure
Tool Number

Tool Name

Tool Graphic

DKI001E21003-27

FICM Fuel Rail Supply Fitting

DSN001E21003-2

FICM Fuel Return Fitting

Table 4
Test and Clean as follows:
1. Turn ignition OFF, apply parking brake, chock wheels, and perform any other applicable safety steps.
2. Open the hood
3. Remove the bumper. Refer to Original Equipment Manufacturer (OEM) procedures

4. Loosen the pressure limiting valve (2) (see above graphic). Allow fuel to drain from the fuel rail. Once
the fuel has drained, torque the pressure limiting valve to 100 N·m (74 lb·ft).
5. Remove the triple-clip bolt retaining the needle amplifier and pressure limiting valve return lines.
6. Remove the bolt retaining the needle return line (3) to the fuel filter module and the bolt retaining the
amplifier and needle return line to the cylinder head (see above graphic).

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Gen 5 Engines – Fuel Rail Fittings
7. Position the needle return line (disconnected from the fuel filter module and connected to the cylinder
head) so it leaves room for installation of the Fuel Injector Cleaning Machine (FICM) fuel return fitting
onto the needle return line. Torque the retaining bolt at the cylinder head to 30 N·m (22 lb·ft)
8. Disconnect the engine wiring harness from the fuel injector wiring harness connectors.
9. Remove the fuel rail pressure sensor (1) (see above graphic).
10. Install the FICM fuel rail supply fitting onto the fuel rail pressure sensor connection point at the fuel rail
(1) (see above graphic), Torque to 40 N·m (30 lb·ft).
11. Install the FICM fuel return fitting onto the needle return line (4) (see above graphic). Torque to 10
N·m (7 lb·ft).
12. Connect the supply line from the FICM to the fuel rail, supply fitting (1) (see above graphic).
13. Connect the return line from the FICM to the fuel return fitting (4) (see above graphic).
14. Connect the FICM wiring harness to fuel injector wiring harness connectors at the camshaft housing.
15. Stir the injector cleaning fluid and then fill the FICM supply tank with at least one gallon of injector
cleaning fluid. Injector cleaning fluid can turn yellow after being opened and this is a normal
condition).
16. Turn Injector Power (4) and Pump Power (5) switches to the OFF position (see below graphic).

17. Connect 110 AC volts power supply to the FICM.
18. Turn the Pump Power switch (5) to the ON position (see above graphic).
19. Turn the fuel injector to be cleaned (8) to the ON position (see above graphic). All other injectors
should be turned off.
20. Turn the Injector Power (4) switch to the 20 Second position (see above graphic).
21. Turn the 20 Second Timer Start (3) switch to the RUN position (see above graphic).
22. Monitor the pressure on the FICM gauge (1) (see above graphic). The pressure should bleed down
during the 20 second process. A fuel injector pressure stuck at 2062 kPa (200 psi) after a fourth
cleaning cycle indicates the tested fuel injector has failed. Do not replace the fuel injector at this time.

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Gen 5 Engines – Fuel Rail Fittings
23. Once fuel injector cleaning begins for the chosen fuel injector, the injector switch (8) illuminates. The
injector switch turns off (see above graphic) after cleaning is complete. After the injector light has
turned off, turn the injector switch (8) off (see above graphic).
24. Repeat steps 19 through 23 to clean the remaining fuel injectors. Clean each fuel injector four times.
The Cycle Counter (6) tracks the number of cleaning cycles completed. After all fuel injectors have
been cleaned four times, reset the cycle counter (7) (see above graphic).
25. Push the round red button (2) on FICM to remove all pressure from the system (see above graphic).
26. Replace any fuel injector that failed testing in step 23 (should this be step 22? –mpa). Refer to
workshop manual section “Removal of the Fuel Injector”. After replacement, continue to step 28.
(what about Step 27? –mpa)
27. Loosen the pressure limiting valve and allow the cleaning fluid to drain from the fuel rail. Once the
cleaning fluid has drained, torque the pressure limiting valve to 100 N·m (74 lb·ft).
28. Disconnect the FICM supply line from the fuel rail supply fitting.
29. Connect a Detroit™ approved fuel primer to the fuel rail supply fitting at the fuel rail.
30. Using the fuel primer, pressurize the fuel rail to 655 kPa (95psi).
31. Turn the fuel injector to be cleaned (8) to the ON position (see above graphic). This will clean the fuel
injectors with diesel fuel. All other fuel injectors should be turned off.
32. Turn the Injector Power (4) switch to 20 Second position (see above graphic).
33. Turn the 20 Second Timer Start (3) switch to the RUN position (see above graphic).
34. Once fuel injector cleaning begins for the chosen fuel injector, the injector switch (8) illuminates. The
injector switch turns off (see above graphic) after cleaning is complete. After the injector light turns
off, turn the injector switch (8) off.
35. Repeat steps 31 through 34 to clean the remaining fuel injectors with diesel fuel.
36. Push the round red button (2) on FICM to remove all pressure from the system (see above graphic).
37. Turn the fuel priming tool off, and turn Injector Power (4) and Pump Power (5) switches to the OFF
position (see above graphic).
38. Disconnect the FICM wiring harness from the fuel injector wiring harness connectors.
39. Disconnect the fuel primer from the fuel rail supply fitting and the FICM return line from the needle
return line.
40. Remove the FICM fuel return fitting from the needle return line.
41. Remove the FICM fuel rail supply fitting from the fuel rail.
42. Lubricate the fuel rail pressure sensor seal ring and threads. Install the fuel rail pressure sensor.
Torque to 65 N·m (48 lb·ft).
43. Connect the engine wiring harness to the fuel injector wiring harness connectors.
44. Remove the bolt retaining the amplifier and needle return line to the cylinder head.
45. Install the needle return line onto the fuel filter module and the cylinder head. Torque to 30 N·m (22
lb·ft).
46. Install the triple-clip bolt retaining the needle, amplifier and pressure limiting valve lines. Torque to 14
N·m (11 lb·ft).
47. Using a Detroit™ approved fuel primer, prime the fuel system. Refer to workshop manual section
“Priming The Fuel System”.
48. Use DiagnosticLink® to perform the FICM Routine (or run the engine at 1200 RPM for 10 minutes).
49. Install the front bumper. Refer to OEM procedures.
50. Close the hood.

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Gen 5 Engines – High Pressure Fuel Line Fittings

Testing and Cleaning Gen 5 Engine Fuel Injectors Using High Pressure Fuel
Line Fittings
FICM Fittings Used in the Procedure
Tool Number

Tool Name

DKI001E21003-5

FICM High Pressure Fuel Line Supply Fitting

DKI001E21003-6

FICM High Pressure Fuel Line Block Off Fitting

DSN001E21003-2

FICM Fuel Return Fitting

Tool Graphic

Table 5
Test and Clean as follows:
1.
2.
3.
4.

Turn ignition OFF, apply parking brake, chock wheels, and perform any other applicable safety steps.
Open the hood
Remove the bumper. Refer to Original Equipment Manufacturer (OEM) procedures
Remove the high pressure fuel rail supply lines (2) (see below graphic). Refer to workshop manual
section “Removal of the High Pressure Fuel Rail Supply Lines” (single use part).

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Gen 5 Engines – High Pressure Fuel Line Fittings
5. Using a fuel line socket, loosen all six high pressure fuel injector lines (1) at the fuel rail only (see
above graphic). Allow the fuel to drain from the high pressure fuel injector lines. Once all lines have
been drained, torque the fuel injector line nuts to 40 N·m (30 lb·ft).
6. Remove the triple-clip bolt retaining the needle amplifier and pressure limiting valve return lines.
7. Remove the bolt retaining the needle return line (3) to the fuel filter module and the bolt retaining the
amplifier and needle return line to the cylinder head (see above graphic).
8. Position the needle return line (disconnected from the fuel filter module and connected to the cylinder
head) so it leaves room for installation of the Fuel Injector Cleaning Machine (FICM) fuel return fitting
onto the needle return line. Torque the retaining bolt at the cylinder head to 30 N·m (22 lb·ft)
9. Disconnect the engine wiring harness from the fuel injector wiring harness connectors.
10. Install the FICM fuel rail supply fitting onto the high pressure fuel rail supply line front connection point