Fuel Injector - On Vehicle Cleaning
89subaru03NUMBER 14-13-89
DATE 08-16-89
ALL SUBARU VEHICLES WITH FUEL INJECTION
SUBJECT: ON-CAR FUEL INJECTOR CLEANING
S0A has tested and approved the use of the Kent-Moore Fuel Injector Cleaner for on-car cleaning of fuel injectors. Features and benefits of this cleaning system include:
^ effective on-car cleaning without injector removal.
^ entire cleaning operation can be completed quickly.
^ fuel injector cleaner uses readily available inexpensive fuel injector cleaning fluid.
^ low cost compared to fuel injector parts replacement costs.
^ fuel injector cleaner completely replaces vehicle's fuel supply system during cleaning operation.
The fuel injector cleaner, available through Kent-Moore Tools under P/N J35800, consists of a hand pressurized reservoir tank complete with gauge, relief valve, and hose with needle shut-off valve. The fuel injector cleaner can be used with the following approved injector cleaner solvents.
^ J35800-15 Kent-Moore Fuel Injector Cleaning Fluid
^ 1050002 GM Top Engine Cleaner
^ X66-P AC-Delco Carburetor Tune-up Conditioner
Although designed specifically for GM port fuel injected engines, the fuel injector cleaner can be easily adapted for use on Subaru vehicles.
Figure 1 - Fuel Injector Cleaner Schematic:
To adapt the fuel injector cleaner for use on Subaru vehicles, discard adapter assembly 12232A supplied with fuel injector cleaner and substitute commonly available brass fittings as necessary to end up with a 5/16" male hose fitting end. See Figure 1 on the following page.
Since the fuel injector cleaner is replacing the fuel supply system in its entirety, the following recommendations must be adhered to when using the Kent-Moore Fuel Injector Cleaner on Subaru vehicles.
^ Depressurize the fuel system by disconnecting the fuel pump (unplug at pump) and run engine until it stalls. Use caution when disconnecting fuel lines as sow residual pressure will remain. Use of protective eyeware is recommended. The fuel pump remains unplugged during the cleaning process.
^ Using the 5/16" male hose end fitting, correct the fuel injector cleaner directly to the most accessible underhood fuel line location, usually at the discharge side of the fuel filter. Always hook in after the fuel filter to prevent running cleaner through the filter.
^ The vehicles fuel return line must be blocked to prevent cleaning fluid from entering the fuel tank. Use pinching pliers on the return hose or remove the line and physically plug. It is important that cleaning fluid does not anter the fuel tank.
^ Limit reservoir tank pressure to 20 psi, not 25 as stated in the Kent-Moore instructions.
^ Cleaning procedure can be repeated if necessary, however no more than three cleanings should be performed at one time.
^ After completing the cleaning operation, close the needle shut-off valve and run engine until it stalls to purge engine of cleaning fluid.
^ Follow the instructions and recommendations included with the cleaner except for the exclusions noted in this bulletin.
^ This item can be ordered from Kent-Moore directly by using their toll free number, 1-800-345-2233.