Fuel Injectors - Deposit Resistant Design

89ford36

Article No. 89-25-8
^ FUEL INJECTOR - 2.3L HSC/HSC HO CALIFORNIA - NEW DEPOSIT RESISTANT TYPE - SERVICE TIPS

^ FUEL INJECTOR - 3.8L - NEW DEPOSIT RESISTANT TYPE - SERVICE TIPS

^ FUEL INJECTOR - 5.8L - NEW DEPOSIT RESISTANT
TYPE - MID YEAR MODEL TRUCKS UNDER 8500# GVW - SERVICE TIPS
FORD: 1990 TAURUS, TEMPO

LINCOLN-MERCURY: 1990 CONTINENTAL, SABLE, TOPAZ

LIGHT TRUCK: 1990 BRONCO, E-150, E-250, F-150, F-250
ISSUE: Deposit resistant injectors (DRI) are resistant to the formation of deposits at the fuel metering area. The DRI's are tan in body color (not connector color) and do not require cleaning.

ACTION: Although cleaning the DRI's is not warranted, testing of all fuel injectors should continue as before. Use the following procedure for servicing the DRI's.

1. Before testing the DRI'S, make sure that the Rotunda Fuel Injector Tester/Cleaner (Part # 113-00001) does not contain injector cleaner fluid by rinsing out the unit with clean and filtered unleaded high detergent gasoline. Refer to TSB 89-15-3 for proper maintenance information.

2. Calibrate the flowmeters on the Rotunda Fuel Injector Tester/Cleaner using the master calibration injectors supplied.
3. Connect the Rotunda Fuel Injector Tester/Cleaner to the vehicle as described in the instructions.

4. Perform the fuel injector test.

5. Replace the injector if it does not pass the bench test.

NOTE: CLEANING THESE INJECTORS WITH THE ROTUNDA TESTER/CLEANER, OR WITH ANY OTHER SERVICE TOOLS, IS NOT NECESSARY.

PART NUMBER PART NAME CLASS

F03Z-9F593-A Fuel Injector (2.3L EFI) B
F0SZ-9F593-A Fuel Injector (3.8L EFI) B
F0TZ-9F593-A Fuel Injector (5.8L EFI) B

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 4500, 680000