background image

Page 3

For technical questions, please call 1-888-866-5797.

Item 64938

11. 

Product service must be performed 
only by qualified service 
technician.  

Service or maintenance 

performed by unqualified personnel 
could result in a risk of injury.

12. 

When servicing the Service Kit, 
use only identical replacement 
parts.  

Follow instructions in the 

“Inspection, Maintenance, And 
Cleaning”

 section of this manual.  Use 

of unauthorized parts or failure to 
follow maintenance instructions may 
create a risk of personal injury.

13. 

Always make sure the area of 
use for this product is clear 
of any children.  

Do not allow 

children to play with this product.

14. 

Do not allow the vehicle’s engine 
to run while using the Service Kit.  

When running, the engine of a 
vehicle produces carbon monoxide, 
a colorless, odorless, toxic gas 
that, when inhaled, can cause 
serious personal injury or death.

15. 

Prior to using this product, make 
sure to read and understand 
all instructions and safety 
precautions as outlined in the 
vehicle manufacturer’s manual.

16. 

Always keep hands and fingers 
away from the moving parts 
and hot parts of an engine.

17. 

Do not use this Service Kit 
on diesel fuel systems.

18. 

Do not smoke while performing 
any fuel injection tests or repairs.

19. 

Always have a dry chemical (Class B) 
fire extinguisher within reach.

20. 

Make sure to provide a suitable 
container to catch released fuel 
when the system is depressurized.

21. 

Take extra care to prevent fuel 
from contacting hot engine parts.  

It is recommended that tests be 
performed when the engine is cold.

22. 

If a drop light is used, do 
not allow fuel to contact the 
hot surface of the bulb.

23. 

Never remove any fittings 
with the engine running.

24. 

Never loosen any fittings or attempt 
to remove hoses of vehicle or 
Service Kit until you have relieved 
the fuel system pressure.  

Refer 

to the vehicle manufacturer’s 
service manual for specific fuel 
pressure relief procedures.

25. 

Always check all connections for 
leaks during the testing procedure.  

At any sign of leaks, turn off the 
engine or disable the fuel pump.  
Clean up any spilled fuel and repair 
all leaks before resuming test.

26. 

When preparing for pressure testing, 
make sure the vehicle’s transmission 
is placed in “PARK” or “NEUTRAL” 
and the emergency brake is applied.

27. 

When the test is complete, 
depressurize the system and remove 
the Service Kit.  

Reassemble the 

vehicle’s fuel line(s) to its original 
condition.  Start the engine and 
check for leaks.  If any leaks are 
present, stop the engine, relieve 
fuel pressure and repair all leaks. 

Summary of Contents for 64938

Page 1: ...ence 21d When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2021 by Harbor Freight Tools All...

Page 2: ...safer at the rate for which it is designed 5 Maintain the Service Kit with care Keep this product clean Properly maintained products are less likely to malfunction Do not use damaged products Tag dama...

Page 3: ...18 Do not smoke while performing any fuel injection tests or repairs 19 Always have a dry chemical Class B fire extinguisher within reach 20 Make sure to provide a suitable container to catch released...

Page 4: ...into this product but must be supplied by the operator SAVE THESE INSTRUCTIONS Applications Picture Description Application 1 High Pressure Gauge with Boot DQG RRN 36 Connects to 2 for basic testing 2...

Page 5: ...Z 6FKUDGHU Adapter Early GENERAL MOTORS TBI systems supply line 14 QWHUQDO ODUH Z 6FKUDGHU Adapter Early GENERAL MOTORS TBI systems supply line 15 PP External O Ring Adapter GENERAL MOTORS TBI supply...

Page 6: ...ting 8VH ZLWK VHH DERYH 30 M12 Female Banjo Fitting 8VH ZLWK VHH DERYH 31 0 WHUQDO O Ring Adapter RU YHKLFOHV ZLWK PP ILWWLQJV HONDA ACURA STERLING Multi Port PGM 32 0 WHUQDO O Ring Adapter 9HKLFOHV Z...

Page 7: ...QDO Internal Swivel Adapter For vehicles with metric threads European CIS CISE 47 0 QYHUWHG Flare Adapter Fuel fitting size found on some hard line fuel connections like TOYOTA 48 0 21 Pulse Dampener...

Page 8: ...bleed off assembly slowly to depressurize the fuel system 11 Refer to Safety Information before removing Tester from vehicle 12 Replace the protective cap onto the test fitting on vehicle Check for l...

Page 9: ...e gaskets from the banjo fitting so that the fuel inlet is once again connected to the fuel rail or cold start injector The test Adapter will hold the banjo assembly in position 6 Torque the Adapters...

Page 10: ...the service manual 9 Stop the engine and turn the ignition OFF 10 With free end of Bleed Off Hose in a suitable container press the button on side of Bleed Off Assembly slowly to depressurize the fuel...

Page 11: ...eve the fuel pressure Refer to the vehicle s service manual for specific pressure relief procedures 3 The connection with the vehicle s fuel injection system is on the fuel rail 4 A disconnect tool no...

Page 12: ...nections for leaks 9 Read the Gauge and compare the result with the pressure values in the service manual 10 Stop the engine and turn the ignition OFF 11 With free end of Bleed Off Hose in a suitable...

Page 13: ...throttle body or discharge side of the fuel pump 4 Assemble the 5 Adapter and Hose with Hose Clamps from the 4 Seal and Service Kit 5 Connect the 5 Adapter as assembled above between the disconnected...

Page 14: ...side of Bleed Off Assembly slowly to depressurize the fuel system 10 Refer to Safety Information before removing Tester from vehicle 11 Reconnect vehicle s fuel line and tighten all clamps securely Ch...

Page 15: ...elief procedures 4 The CIS system has a primary circuit with pressure regulated at the fuel distributor This is known as supply pressure primary pressure or line pressure The side of the Tester withou...

Page 16: ...Install Adapter s 32 33 34 35 37 38 40 41 42 43 44 45 or 46 and O Ring from the 4 Seal and Service Kit to the engine as required 6 Attach the female quick coupler on the Pressure Testing and Bleed Of...

Page 17: ...ol with clean cloth 3 Periodically check the threads for damage 4 Keep clean and free from dirt grease and grit 5 Store tool in its Carrying Case when not in use PLEASE READ THE FOLLOWING CAREFULLY 7...

Page 18: ...HVW GDSWHU Part Description 27 0 0DOH RXEOH DQMR EFI Pressure Test Adapter 28 0 0DOH RXEOH DQMR EFI Pressure Test Adapter 29 M8 Female Banjo Fitting 30 M12 Female Banjo Fitting 31 0 WHUQDO 2 5LQJ GDSW...

Page 19: ...For technical questions please call 1 888 866 5797 Item 64938 Diagram 9 10 11 12 21 7 8 2 3 26 27 28 29 30 1 24 23 22 20 19 18 17 16 15 14 13 6 5 25 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47...

Page 20: ...ranty excludes normal wear and tear and does not apply to products subjected to misuse use or operation other than for the intended purpose or not in accordance with the product manual abuse accident...

Reviews: